95-746: The Colt Walker , sometimes known as the Walker Colt , is a single-action revolver with a revolving cylinder holding six charges of black powder behind six bullets (typically .44 caliber lead balls). It was designed in 1846 by American firearms inventor Samuel Colt to the specifications of Captain Samuel Hamilton Walker . The Colt Walker was created in the mid-1840s in a collaboration between Texas Ranger Captain Samuel Hamilton Walker (1817–1847) and American firearms inventor Samuel Colt (1814–1862), building upon
190-420: A punch / chisel , which then relays the hammer impulse by moving forward rapidly along its longitudinal axis. A striker is essentially a firing pin directly loaded to a spring, eliminating the need to be struck by a separate hammer. The firing pin/striker then collides into the cartridge primer positioned ahead of it, which contains shock-sensitive compounds (e.g., lead styphnate ) that sparks to ignite
285-411: A quicker initiation of fire, but compromised by having a longer, heavier trigger pull, which can affect accuracy compared to the lighter, shorter trigger pull of a single-action fire. In a DA/SA semi-automatic pistol , the trigger mechanism functions identically to that of a DA revolver. However, this is combined with the ability of the pistol slide to automatically cock the hammer when firing. Thus,
380-436: A "buffer zone" that prevents the shooter from "jerking the trigger", allowing the remnant pressing force from the finger to be dampened via a "follow-through" motion. Although a perceivable overtravel can be felt as adding to the "creep" of the trigger break, it is not always considered a bad thing by some shooters. An overtravel stop will arrest the motion of the trigger blade and prevent excessive movement. When user releases
475-520: A Dragoon though it is generally accepted that he used a Colt 1851 Navy Revolver in his street duel with Davis Tutt . The Dragoon is now a collectible arm and sells for high prices. Non-firing replicas of the Colt 1848 Dragoon were manufactured at Denix in Spain. In 2005, a fire burned down the factory and destroyed the mold for the gun, which has since gone out of production. Denix has since reintroduced
570-533: A V-type mainspring, no wheel on the rear of the hammer, and a square back trigger guard. Colt produced about 7,000 first models between 1848 and 1850. The Second Model has rectangular cylinder notches. Until the no. 10,000 the V-shaped mainspring was standard and then replaced with a flat leaf mainspring and a wheel on the hammer at its bearing on the mainspring. All the Second Model Dragoons have
665-477: A cartridge or loading the chamber, the hammer or striker will rest in a partially cocked position. The trigger serves the function of completing the cocking cycle and then releasing the striker or hammer. While technically two actions, it differs from a double-action trigger in that the trigger is not capable of fully cocking the striker or hammer. It differs from single-action in that if the striker or hammer were to release, it would generally not be capable of igniting
760-435: A degree of safety in the field compared to having a conventional, very light trigger. There are two types: single set and double set. Set triggers are most likely to be seen on customized weapons and competition rifles where a light trigger pull is beneficial to accuracy. A single set trigger is usually one trigger that may be fired with a conventional amount of trigger pull weight or may be "set" – usually by pushing forward on
855-424: A heavier weight and little or no discernible movement. A perceivably slow trigger break is often referred to as a "creep", and frequently described as an unfavorable feature. The trigger overtravel happens immediately after the break and is typically a short distance and can be considered an inertially accelerated motion caused by the residual push of the finger coupled with the sudden decrease in resistance after
950-569: A large revolver to replace the single-shot Model 1842 Percussion Pistols then in use. The desired .44–.45 caliber revolver would be carried in saddle mounted holsters. The Colt Walker was used in the Mexican–American War and on the Texas frontier. Medical officer John "Rip" Ford took a special interest in the Walkers when they arrived at Veracruz . He obtained two examples for himself and
1045-467: A manual safety that additionally may serve to decock the hammer. Some have a facility (generally a lever or button) to safely lower the hammer. As a disadvantage, these controls are often intermingled with other controls such as slide releases, magazine releases, take-down levers, takedown lever lock buttons, loaded chamber indicators, barrel tip-up levers, etc. These variables become confusing and require more complicated manuals-of-arms. One other disadvantage
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#17327718653341140-527: A master weapon for civilians who hailed it as a powerful weapon of the time. Famous users included Joaquin Murietta , the California bandit, Charley Parkhurst , California teamster and stagecoach driver, James Douglas Byrd , Town Marshal, Watsonville, California, 1868, Tiburcio Vasquez , Union general George B McClellan , and fictional Augustus McCrae , in the novel Lonesome Dove , Mattie Ross in
1235-527: A police pistol. These weapons also generally lack any type of external safety. DAO is common among police agencies and for small, personal protection firearms. The primary drawback is that the additional trigger pull weight and travel required for each shot reduces accuracy. Pre-set triggers offer a balance of pull weight, trigger travel, safety, and consistency. Glock popularized this trigger in modern pistols and many other manufacturers have released pre-set striker products of their own. The primary disadvantage
1330-628: A rawhide loop around both the barrel and loading lever, to prevent the loading lever from dropping under recoil and locking the action. The Whitneyville-Hartford Dragoon is known as the first transitional model from the Walker to the Dragoon series, as it was largely built from leftover Walker parts. Subsequent contracts beginning in 1848 followed, for what is today known among collectors as the First , Second and Third Dragoon Models that were all based on
1425-607: A record price of $ 1.84 million. This makes this the most expensive single firearm ever sold at auction. The Republic of Texas had been the major purchaser of the early Paterson Holster Pistol (No. 5 model) , a five shot cal .36 revolver, and Samuel Walker became familiar with it during his service as a Texas Ranger . In 1847, Walker was engaged in the Mexican–American War as a captain in the United States Mounted Rifles. He approached Colt, requesting
1520-425: A resolution naming the 1847 Colt Walker pistol the official handgun of Texas. In the 1969 movie True Grit, Marshal Rooster Cogburn (John Wayne) misidentified Mattie Ross’s Walker Colt revolver as a Colt’s Dragoon pistol. It was reported in an The American Rifleman article that this was the first appearance of a Walker Colt in a movie; and that the Walker was chosen to dramatize the difference in size between Mattie and
1615-488: A result an external safety is sometimes employed. Double-action triggers provide the ability to fire the gun whether the hammer is cocked or uncocked. This feature is desirable for military, police, or self-defense pistols. The primary disadvantage of any double-action trigger is the extra length the trigger must be pulled and the extra weight required to overcome the spring tension of the hammer or striker. DA/SA pistols are versatile mechanisms. These firearms generally have
1710-525: A round trigger guard. Government records showed an order for 8,390 Dragoons. Other variants included the Colt "1848 Pocket Pistol" now known as the Baby Dragoon, marketed in California with success during the Gold rush days. With the addition of a loading lever this evolved into the 1849 pocket revolver (see Colt Pocket Percussion Revolvers ). The Dragoon was produced because of the problems seen with
1805-511: A separate number range for the British market. For collectors, there are three different types with one "transition" model. Between the Walker and the First model Dragoon, around 240 improved models were produced, having a barrel length of 7 + 1 ⁄ 2 inches (190 mm) and a cylinder diameter of 2 + 3 ⁄ 16 inches (56 mm). Their general appearance was similar to that of
1900-496: A single-action mechanism altogether, more commonly DAO revolvers are modifications of existing DA/SA models, with identical internals, only with access to the hammer prevented, either by covering it with a shroud or by removing the thumb spur. In both cases, the goal is to prevent the possible snagging of the hammer spur on clothing or holster. Due to the imposed limitation in accuracy, the majority of DAO revolvers have been short-barrel, close-range "snub" weapons, where rapidity of draw
1995-404: A single-stage or two-stage trigger by adjusting the takeup. Setting the takeup travel (also known as the first stage) to near zero essentially makes the trigger a single-stage trigger. Some single-stage triggers (e.g., Glock Safe Action trigger, Savage AccuTrigger ) have an integral safety with a noticeable spring resistance that can functionally mimic a two-stage trigger. The trigger break
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#17327718653342090-401: A spring) the hammer/striker, rotating a revolver 's cylinder , deactivating internal safeties , transitioning between different firing modes (see progressive trigger ), or reducing the pull weight (see set trigger ). A single-action (SA) trigger is the earliest and mechanically simplest of trigger types. It is called "single-action" because it performs the single function of releasing
2185-415: A trigger pull to both cock and trip the hammer/striker for every single shot, unlike a DA/SA, which only requires a double-action trigger pull for the first shot (or a typical DA/SA revolver, which can fire single action any time the user wishes but uses double-action as a default). This means that there is no single-action function for any shot, and the hammer or striker always rests in the down position until
2280-426: A way to catch the hammer on release; while the other two have three-position safety selectors and a way to capture the hammer on release. In these triggers, the third position activates the pull and release mode, while the center selector position causes the trigger to only drop the hammer when pulled. A set trigger allows a shooter to have a greatly reduced trigger pull (the resistance of the trigger) while maintaining
2375-522: Is a .44 caliber revolver designed by Samuel Colt for the U.S. Army's Regiment of Mounted Rifles. The revolver was also issued to the Army's " Dragoon " regiments. This revolver was designed as a solution to numerous problems encountered with the Colt Walker . Although it was introduced after the Mexican–American War , it became popular among civilians during the 1850s and 1860s and was also used during
2470-445: Is a trigger that must perform the double function of both cocking and releasing the hammer/striker. Such trigger design either has no internal sear mechanism capable of holding the hammer/striker in a still position (so cocking and releasing have to happen in one uninterrupted sequence), or has the whole hammer shrouded and/or with the thumb spur machined off, preventing the user from manipulating it separately. This design requires
2565-504: Is also known as traditional double-action (TDA), as the vast majority of modern "double-action" handguns (both revolvers and semi-automatic pistols ) use this type of trigger instead of "double-action only" (DAO). In simple terms, "double-action" refers to a trigger mechanism that both cocks the hammer and then releases the sear, thus performing two "acts", although it is supposed to describe doing both strictly with one trigger pull only. However, in practice most double-action guns feature
2660-412: Is essential and limited accuracy is already an acceptable compromise. The purpose of a DAO action in a semi-automatic is mostly to avoid the change in trigger pull between the first and subsequent shots that one experiences in a DA/SA pistol, while avoiding the perceived danger of carrying a cocked single-action handgun, although it also avoids having to carry a cocked and loaded pistol, or having to lower
2755-597: Is named for the sudden loss of resistance when the sear reaches the point of release, which is described as resembling the breaking of rigid materials when the strength fails under stress . The actuation force required to overcome the sear resistance during the break is known as the trigger weight , which is usually measured with a force gauge in newtons in SI units , or alternatively kilograms or grams in metric units, and pounds and/or ounces in US customary units . The break
2850-404: Is often considered the most critical stage of the trigger pull for achieving good practical accuracy, since it happens just prior to the shot being discharged and can cause some unwanted shakes from the shooter's hand at the instant of firing. Shooter preferences vary; some prefer a soft break with a smooth but discernible amount of trigger travel during firing, while others prefer a crisp break with
2945-507: Is often used as a common expression of any overly large generic handgun example. Companies such as Uberti and Pietta offer their own versions of modern replica Walkers. These are functional revolvers using percussion caps and black powder. Important sets of functioning percussion replicas were also made under the Colt label, although not by Colt directly. This was done in two distinct phases, by somewhat different different players, with varying degrees of engagement by Colt. The first phase
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3040-432: Is that pulling the trigger a second time after a failure to fire will not re-strike the primer. In normal handling of the firearm, this is not an issue; loading the gun requires that the slide be retracted, pre-setting the striker. Clearing a malfunction also usually involves retracting the slide following the " tap rack bang " procedure. Colt Dragoon Revolver#First Model The Colt Model 1848 Percussion Army Revolver
3135-399: Is the difference between the first double-action pull and subsequent single-action pulls. DAO firearms resolve some DA/SA shortcomings by making every shot a double-action shot. Because there is no difference in pull weights, training and practice are simplified. Additionally, the heavier trigger pull can help to prevent a negligent discharge under stress. This is a particular advantage for
3230-413: Is the primary source for information about their performance during the war and afterward. His observation that the revolver would carry as far and strike with the same or greater force than the .54 caliber Mississippi Rifle seems to have been based on a single observation of a Mexican soldier hit at a distance of well over one hundred yards. The Walker, unlike most succeeding martial pistols and revolvers,
3325-399: Is to rack the slide, clearing the round and recocking the hammer. While this can be advantageous in that many rounds will fire on being struck a second time, and it is faster to pull the trigger a second time than to cycle the action, if the round fails to fire on the second strike, the user will be forced to clear the round anyway, thus using up even more time than if they had simply done so in
3420-449: The .357 Magnum in 1935, having a muzzle energy nearly exactly the same as a 4-inch-barreled (10 cm) handgun firing a .357 Magnum. Taking into account its muzzle velocity and energy produced, it currently still holds the record for the most powerful handgun ever issued by the US military. The Colt Walker has long maintained a unique position and mystique among handgun users, and its name
3515-582: The American Civil War . The Colt Dragoon Revolver was produced with several variations between 1847 and 1860, when the Colt Model 1860 revolver replaced it. All the improvements in design of Colt revolvers were applied to the Dragoons as well to the smaller models of Colt revolvers. Total production of Colt Dragoons including the 1,100 Walkers, from 1847 to 1860: 19,800; plus 750 Dragoons in
3610-574: The LeMat , as well as early metallic cartridge revolvers such as the Colt Model 1873 "Single Action Army" (named for its trigger mechanism) and Smith & Wesson Model 3 , all of which required a thumb to cock the hammer before firing. Single-action triggers with manually cocked external hammers lasted a while longer in some break-action shotguns and in dangerous game rifles, where the hunter did not want to rely on an unnecessarily complex or fragile weapon. While single-action revolvers never lost favor in
3705-558: The Smith & Wesson Centennial , the Type 26 Revolver , and the Enfield No. 2 Mk I* and Mk I** revolvers, in which there is no external hammer spur, or which simply lack the internal sear mechanism capable of holding the hammer in the cocked position. A double-action/single-action (DA/SA) trigger is a hybrid design combining the features of both single- and double-action mechanisms. It
3800-598: The Smith & Wesson Model 27 , S&W Model 60 , the Colt Police Positive , Colt Python , etc. Early double-action revolvers included the Beaumont–Adams and Tranter black-powder muzzleloaders . There are some revolvers that can only be fired in double-action mode (DAO), but that is almost always due to existing double-action/single-action models being modified so that the hammer cannot be cocked manually, rather than from weapons designed that way from
3895-418: The propellant powder within the cartridge case and thus discharges the projectile . The trapping interface between the trigger and the hammer/striker is typically referred to as the sear surface. Variable mechanisms will have this surface directly on the trigger and hammer or have separate sears or other connecting parts. The trigger pull can be divided into three mechanical stages: When considering
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3990-555: The Colt third-generation “Signature Series.” All the parts for the guns were made by Uberti or Armi San Marco, with Iver Johsnon handling quality control, final inspection, and sales. Colt no longer had any involvement at all, and did not officially approve the revolvers, even though the Colt name was used under license. Modern replicas have also been made chambered in the .45 Black Powder Magnum wildcat cartridge. These have been offered by Cimarron Firearms , Armi San Marco, and Uberti. On May 23, 2021, Texas Governor Greg Abbott signed
4085-496: The Colt Walker, enabling a rapid evolution of the basic revolver design. These improvements included shorter 7 + 1 ⁄ 2 -inch (190 mm) barrels, shorter chambers, typically loaded only to 50 grains instead of 60 grains, thereby reducing the occurrence of ruptured cylinders, and the addition of an improved catch at the end of the loading lever to prevent the dropping of the loading lever under recoil. The Colt Walker
4180-459: The US right up until the birth of the semi-automatic pistol , double-action revolvers such as the Beaumont–Adams were designed in Europe before the American Civil War broke out and saw great popularity all through the latter half of the 19th century, with certain numbers being sold in the US as well. While many European and some American revolvers were designed as double-action models throughout
4275-426: The Walker included ruptured cylinders when firing. This has been attributed to primitive metallurgy, soldiers allowing powder to spill across the mouths of the chambers, and even loading the original conical bullets backwards into the chambers. Under 300 of the original 1,000 were returned for repair due to a ruptured cylinder. Lard was loaded into the mouths of the cylinders on top of each bullet after loading to prevent
4370-527: The Walker revolvers. In the events that led to the American Civil War, Colt Dragoons became extremely popular. In the beginning Colt Dragoon Revolvers were issued for the U.S. Army's Mounted Rifles. They were carried in pommel holsters on the saddle. The Colt Dragoon Revolver gained popularity among civilians in the Southwest where many had served in the Mexican–American War. The Dragoon became
4465-480: The Walker. A loading lever latch in front of the lever replaced the spring to keep the lever from dropping during recoil, thereby preventing jamming of the revolver. These variations gave the Colt Dragoon Revolver a weight of 4 pounds 2 ounces (1.9 kg). These changes also reduced the risk of the Colt Dragoon Revolver exploding when fired, obviating the risk that had been demonstrated with
4560-411: The adult actors in the film. Single-action A trigger is a mechanism that actuates the function of a ranged weapon such as a firearm , airgun , crossbow , or speargun . The word may also be used to describe a switch that initiates the operation of other non-shooting devices such as a trap , a power tool , or a quick release . A small amount of energy applied to the trigger leads to
4655-513: The civilian market, making original Colt Walker revolvers extremely rare and valuable. On October 9, 2008, one specimen that had been handed down from a Mexican War veteran was sold at auction for US$ 920,000. As reported in America's 1st Freedom magazine in July 2018, a Model 1847 Colt Walker pistol – the only known surviving example complete with its original case – was sold by Rock Island Auction for
4750-447: The cocked position when it is pulled to the rear and the trigger is not depressed. In a revolver , this means that simply squeezing the trigger when the hammer is lowered will both cock and release it. If the user uses their thumb to pull the hammer to the back, but does not press the trigger, the mechanism will lock the hammer in the cocked position until the trigger is pressed, just like a single action. Firing in double-action mode allows
4845-411: The earlier Colt Paterson design. Walker wanted a handgun that was extremely powerful at close range. Samuel Walker carried two of his namesake revolvers in the Mexican–American War . He was killed in battle the same year his famous handgun was invented, 1847, shortly after he had received them. Only 1,100 of these guns were originally made, 1,000 as part of a military contract and an additional 100 for
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#17327718653344940-616: The factory. A release trigger releases the hammer or striker when the trigger is released by the shooter, rather than when it is pulled. A binary trigger is a trigger for a semiautomatic firearm that drops the hammer both when the trigger is pulled, and also when it is released. Examples include the AR-15 series of rifles, produced by Franklin Armory, Fostech Outdoors, and Liberty Gun Works. The AR-15 trigger as produced by Liberty Gun Works only functions in pull and release mode, and does not have
5035-489: The fielded Colt Walker revolvers, namely, the Walker's heavy weight, four and a half pounds, making it suitable only for use as a saddle-mounted revolver, the Walker's propensity for cylinders exploding on occasion when fired (due to the chambers being loaded with too much powder often in combination with the Pickett bullets being loaded backwards), and the Walker's habit of dropping the loading lever upon discharge, locking up
5130-423: The final gun. Iver Johnson gave the guns a case-hardened finish, or a Colt Blue Finish. During this phase, Colt had a close relationship with Iver Johnson, and approved of the designs and production, even though Colt did not directly produce the guns. The second phase was from 1994 to 2002. During this period, at least 4300 Walker replicas were produced by the “Colt Blackpowder Arms Company,” and marketed as part of
5225-421: The first place. The Taurus PT 24/7 Pro pistol (not to be confused with the first-generation 24/7 which was a traditional pre-set) offered this feature starting in 2006. The Walther P99 Anti-Stress is another example. A double-crescent trigger provides select fire capability without the need for a fire mode selector switch. Pressing the upper segment of the trigger produced semi-automatic fire, while holding
5320-538: The full 50 grains of powder frequently show chronographed readings in the range of 1,000–1,100 feet per second (300–340 m/s), depending upon the powder used. A cartridge-converted Colt Walker instead of the Colt Dragoon in the book was used in the 1969 film True Grit , as the weapon carried by 14-year-old Mattie, possibly due to the Walker's larger size. The Dragoon was used in the True Grit (2010) as in
5415-652: The grips and the second was straight-backed. Another distinctive detail were the very slender "Slim Jim" grips. Note: Due to serial number gaps between the "Transition" model and the First Dragoon, of which Colt later "backfilled", as well as the details of the production and delivery of the Second Government Contract, The "fluck Dragoon" was erroneously derived. The First Model Colt Dragoon Revolver production began in 1848, stemming from Colt's Second Government Contract. It has oval cylinder stops,
5510-481: The hammer from accidentally dropping, or a " decocker " – a lever that safely and gently drops the hammer (i.e. decocks the gun ) without fear of the gun firing. The latter is the more popular because, without a decocker, the user is forced to lower the hammer by hand onto a loaded chamber, with all of the attendant safety risks that involves, to return the gun to double-action mode. Revolvers almost never feature safeties, since they are traditionally carried un-cocked, and
5605-430: The hammer is manually lowered again. This gives the positive aspects of a single-action trigger without the need to carry "cocked and locked" (with a loaded chamber and cocked hammer), or with an empty chamber, which requires the user to chamber a round before firing. A potential drawback of a DA/SA weapon is that the shooter must be comfortable dealing with two different trigger pulls: the longer, heavier DA first pull and
5700-656: The hammer on a loaded chamber, if one only fires a partial magazine. A good example of this action in a semi-automatic is the SIG Sauer DAK trigger, or the DAO action of the Sig P250 . For striker-fired pistols such as the Taurus 24/7 , the striker will remain in the rest position through the entire reloading cycle. This term applies most often to semi-automatic handguns; however, the term can also apply to some revolvers such as
5795-684: The hammer requires the user to physically cock it prior to every shot; unlike a DA/SA gun, which cocks itself every time the slide is cycled. There are many examples of DA/SA semi-automatics, the Little Tom Pistol being the first, followed up by the Walther PPK and Walther P38 . Modern examples include weapons such as the Beretta 92 , among others. Almost all revolvers that are not specified as single-action models are capable of firing in both double- and single-action mode, for example,
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#17327718653345890-504: The hammer/striker (and nothing else), while the hammer/striker must be cocked by separate means. Almost all single-shot and repeating long arms (rifles, shotguns , submachine guns , machine guns, etc.) use this type of trigger. The "classic" single-action revolver of the mid-to-late 19th century includes black powder caplock muzzleloaders such as the Colt 1860 "Army" Model , and Colt 1851 "Navy" Model , and European models like
5985-468: The late 1930s and early 1940s, Walther introduced the first "double-action" (actually DA/SA hybrid) semi-automatic pistols, the PPK and P.38 models, which featured a revolver-style double-action trigger, allowing the weapon to be carried with a round chambered and the hammer lowered. After the first shot, they would fire subsequent shots like a single-action pistol. These pistols rapidly gained popularity, and
6080-420: The late 19th century, for the first half of the 20th century, all semi-automatic pistols were single-action weapons, requiring the weapon to be carried cocked and loaded with the safety on, or uncocked with an empty chamber ( Colt M1911 , Mauser C96 , Luger P.08 , Tokarev TT , Browning Hi-Power ). The difference between these weapons and single-action revolvers is that while a single-action revolver requires
6175-445: The lower segment of the trigger produced fully automatic fire. Though considered innovative at the time, the feature was eliminated on most firearms due to its complexity. Examples include MG 34 , Kulsprutegevär m/40 automatic rifle , M1946 Sieg automatic rifle , Osario Selectiva, and Star Model Z62 . A progressive , or staged trigger allows different firing rates based on how far it is depressed. For example, when pulled lightly,
6270-583: The non-firing model of the Colt 1848 Dragoon in nickel. Quality replica Dragoons are currently produced by the Aldo Uberti Company of Brescia, Italy and distributed in the United States by Taylors, Inc.; Cimarron Firearms , and others. They are quite accurate and potentially more powerful than the belt sized revolvers of the same bore diameter. Velocities with .451–.457 inches (11.5–11.6 mm) round balls of approximately 141 grains over
6365-567: The novel True Grit and in the 2010 film (including the 1969 film of the same name) had Mattie Ross using a Colt Walker revolver, though John Wayne 's character Rooster referred to it as a Colt's Dragoon. Charley Parkhurst, while driving freight, was confronted by two bandits whom he/she shot with the Colt Holster Pistol. According to Harper's Weekly , James Butler ( Wild Bill Hickok ) arrived in Springfield, Missouri carrying
6460-415: The optional ability to cock the hammer separately, reducing the trigger to perform just one action. This is opposed to "double-action only" firearms, which completely lack the capability to fire in single-action mode. In a DA/SA trigger, the mechanism is designed with an internal sear that allows the trigger to both cock and release the hammer/striker when fully pulled, or to merely lock the hammer/striker in
6555-466: The practical accuracy of a firearm, the trigger takeup is often considered the least critical stage of the trigger pull. Often triggers are classified as either single-stage or two-stage based on the takeup. A single-stage trigger is often called direct trigger and is popular on hunting rifles. A two-stage trigger is often called pressure trigger and is popular on competition rifles. Some fully adjustable triggers can be adjusted to function as either
6650-553: The primer. Examples of pre-set strikers are the Glock , Smith & Wesson M&P , Springfield Armory XD -S variant (only), Kahr Arms , FN FNS series and Ruger SR series pistols. This type of trigger mechanism is sometimes referred to as a Striker Fired Action or SFA. Examples of pre-set hammers are the Kel-Tec P-32 and Ruger LCP pistols. Pre-set hybrid triggers are similar to a DA/SA trigger in reverse. The first pull of
6745-403: The production Dragoon models. These were produced between late in 1847 and 1848, serial number range approximately 1100 (the last civilian Walker) through about 1340 (the first Dragoon First Model). These are sometimes called "Transition Walker" revolvers, and were made in two frame variations. The earlier pattern was a Walker carry-over with a cut-out in the back to accommodate the round contour of
6840-649: The release of much more energy. Most triggers use a small flattened lever (called the trigger blade ) depressed by the index finger , but some weapons such as the M2 Browning machine gun or the Iron Horse TOR ("thumb-operated receiver") use a push-button -like thumb-actuated trigger design, and others like the Springfield Armory M6 Scout use a squeeze-bar trigger similar to the "ticklers" on medieval European crossbows . Although
6935-415: The revolver action in the middle of combat. The Colt Dragoon Revolver had a comparatively shorter cylinder (thus preventing overloading the cylinder) and held up to 50 grains of powder, whereas the Walker had used up to 60 grains of powder. The Dragoon Revolver had a shorter barrel at 7.5 inches (190 mm) (and on some later revolvers, 8 inches [200 mm]) as compared to the 9-inch (230 mm) barrel on
7030-414: The revolvers and accoutrements. Colt commissioned Eli Whitney to fill the contract and produced an extra 100 revolvers for private sales and promotional gifts. Notable recipients include John Coffee Hays . Colt commissioned New York engraver Waterman Ormsby to etch a scene on the cylinder that was based on Walker's description of the 1844 battle. In addition to its large size and weight, problems with
7125-401: The set trigger, and then pulling the firing trigger. A double set, double phase trigger can be operated as a standard trigger if the set trigger is not pulled, or as a set trigger by first pulling the set trigger. Double set, double phase triggers offer the versatility of both a standard trigger and a set trigger. Pre-set strikers and hammers apply only to semi-automatic handguns. Upon firing
7220-433: The shorter, lighter subsequent SA pulls. The difference between these trigger pulls can affect the accuracy of the crucial first few shots in an emergency situation. Although there is little need for a safety on a DA/SA handgun when carrying it loaded with the hammer down, after the first shots are fired, the hammer will be cocked and the chamber loaded. Thus, most DA/SA guns either feature a conventional safety that prevents
7315-406: The shortest, lightest, and smoothest pull available. The pull is also consistent from shot to shot so no adjustments in technique are needed for proper accuracy. On a single-action revolver, for which the hammer must be manually cocked prior to firing, an added level of safety is present. On a semi-automatic, the hammer will be cocked and made ready to fire by the process of chambering a round, and as
7410-428: The spark from igniting all chambers at once, a practice which continues to this day among black-powder revolver shooters, and although each chamber held 60 grains of powder, Colt recommended no more than 50 grains in each chamber. The Walker had an inadequate loading lever catch that often allowed the loading lever to drop during recoil, preventing fast follow-up shots. Period-correct fixes for this often included placing
7505-414: The spring under tension , an intermediate mechanism to transmit the kinetic energy from the spring releasing, and a firing pin to eventually strike and ignite the primer. There are two primary types of striking mechanisms – hammer and striker . A hammer is a pivoting metallic component subjected to spring tension so when released will swing forward to strike a firing pin like a mallet hitting
7600-430: The square back trigger guard. The company made about 2,550 Second Models in 1850 and 1851. The Third Model Dragoon numbers stand at ten-thousand from 1851 through 1860. This design had more variations as compared to its earlier counterparts. Some of the third model Colt Dragoon Revolvers had frame cuts for detachable shoulder stocks, horizontal loading lever latches and folding leaf sights. Third Colt Dragoon Revolvers had
7695-411: The traditional single-action-only pistols rapidly lost favor, although they still retain a dedicated following among enthusiasts. Today, a typical revolver or semi-automatic pistol is a DA/SA one, carried in double-action mode but firing most of its shots in single-action mode. A double-action trigger, also known as double-action only (DAO) to prevent confusion with the more common hybrid DA/SA designs,
7790-421: The trigger also performs the additional function of cocking the hammer – and there are many designs where the trigger is used for a range of other functions. Firearms use triggers to initiate the firing of a cartridge seated within the gun barrel chamber . This is accomplished by actuating a striking device through a combination of mainspring (which stores elastic energy ), a trap mechanism that can hold
7885-414: The trigger break. It can be a very critical factor for accuracy because shaking movements during this phase may precede the projectile leaving the barrel and is especially important with firearms with long barrels, slow projectiles and heavy trigger weights, where the more significant resistance drop can make the trigger finger overshoot and shake in an uncontrolled fashion. Having some overtravel provides
7980-409: The trigger is pre-set. If the striker or hammer fail to discharge the cartridge, the trigger may be pulled again and will operate as a double-action only (DAO) until the cartridge discharges or the malfunction is cleared. This allows the operator to attempt a second time to fire a cartridge after a misfire malfunction, as opposed to a single-action, in which the only thing to do if a round fails to fire
8075-479: The trigger is tasked to perform, a.k.a. the trigger action (not to be confused with the action of the whole firearm , which refers to all the components that help handle the cartridge, including the magazine , bolt , hammer and firing pin / striker , extractor and ejector in addition to the trigger). While a trigger is primarily designed to set off a shot by releasing the hammer/striker, it may also perform additional functions such as cocking (loading against
8170-431: The trigger pull begins. With semi-automatics, this means that unlike DA/SA weapons, the hammer does not remain cocked after the first round is fired, and every shot is in double-action mode. With revolvers, this means that one does not have the option of cocking the gun before shooting and must always shoot it in double action mode. Although there have been revolvers that were designed with trigger mechanisms totally lacking
8265-425: The trigger, and it travels to its resting position. On semiauto firearms the movement eventually passes by reset position where trigger-disconnector mechanism resets itself to its resting state, in which pulling the trigger releases the sear. The reset event does not occur in double action firearms and in full auto firearms. There are numerous types of trigger designs, typically categorized according to which functions
8360-514: The trigger, or by pushing forward on a small lever attached to the rear of the trigger. This takes up the trigger slack (or "take-up") in the trigger and allows for a much lighter trigger pull. This is colloquially known as a hair trigger . A double set trigger achieves the same result, but uses two triggers: one sets the trigger and the other fires the weapon. Double set triggers can be further classified into two different phases. A double set, single phase trigger can only be operated by first pulling
8455-485: The user to manually cock the hammer before each firing, a single-action semi-automatic pistol only requires manual cocking for the first shot, after which the slide will reciprocate under recoil to automatically recock the hammer for a next shot, and is thus always cocked and ready unless the user manually decocks the hammer, encounters a misfiring cartridge , or pulls the trigger on an empty chamber (for older weapons lacking "last round bolt hold open" feature). In
8550-416: The weapon can be carried with the hammer down on a loaded chamber, reducing perceived danger of carrying a single-action semi-automatic. When the user is ready to fire, simply pulling the trigger will cock and release the hammer in double action mode. When the weapon fires, the cycling slide automatically cocks the hammer to the rear, meaning that the rest of the shots fired will be in single-action mode, unless
8645-416: The weapon will fire a single shot. When depressed further, the weapon fires at a fully automatic rate. Examples include FN P90 , Jatimatic , CZ Model 25 , PM-63 , BXP , F1 submachine gun , Vigneron submachine gun , Wimmersperg Spz-kr , and Steyr AUG . Each trigger mechanism has its own merits. Historically, the first type of trigger was the single-action. This is the simplest mechanism and generally
8740-414: The word "trigger" technically implies the entire mechanism (known as the trigger group ), colloquially it is usually used to refer specifically to the trigger blade. Most firearm triggers are "single-action", meaning that the trigger is designed only for the single function of disengaging the sear , which allows for a spring -tensioned hammer / striker to be released. In "double-action" firearm designs,
8835-427: Was a practical weapon out to about 100 yards (91 m). The Colt Walker holds a powder charge of 60 grains (3.9 g) in each chamber, more than twice what a typical black powder revolver holds. It weighs 4 + 1 ⁄ 2 pounds (2 kg) unloaded, has a 9-inch (230 mm) barrel, and fires a .44 caliber (0.454 in (11.5 mm) diameter) conical and round ball. The initial contract called for 1,000 of
8930-551: Was from 1980 to 1982. During this period, 5019 Walker replicas were produced bearing the Colt name. They were part of the second-generation “F” series of Colt replicas marketed as “The Authentic Colt Blackpowder Series.” Barrels, cylinders, and backstops were rough-cast in Italy by Uberti. They were finished at Iver Johnson in Middlesex, New Jersey. Iver Johnson also made the frames, center pins, nipples, springs, and screws, and built
9025-404: Was quite powerful, with modern replicas firing modern FFFg black powder producing energy levels in excess of 500 foot-pounds (680 J) muzzle-energy with both picket bullets and 0.454-inch-diameter (11.5 mm), 141-grain (9.1 g) round ball bullets. The black powder Colt Walker is regarded as the most powerful commercially manufactured repeating handgun from 1847 until the introduction of
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