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43-510: The company was created in 1999 by gunsmith Keith Sipe because of his desire to produce a high-quality controlled-feed action. At the time Sipe felt it was difficult for gunsmiths to purchase such actions. In 2007 the ownership transferred to Sipe's son, Jeff Sipe, who was a former Kimber Manufacturing employee. In early 2019, a private investor group named the Montana Outdoor Group acquired Montana Rifle Company. In early 2020

86-412: A ballistic table ). The latter is particularly relevant at very close ranges (e.g. 15 meters [49 feet]), while at longer distances, such as in long range shooting , the scope height has less impact on the ballistic calculations. The height of a scope sight can be measured in many ways. With regard to ballistic calculations, it is generally only measured from the center of the bore axis to the center of

129-509: A base attached to the firearm and rings (usually two) attached to the sight. The rings are usually made of steel or aluminum. Common diameters on ring mounts are 25.4 mm (1 inch), 26 mm, 30 mm and 34 mm. There are big differences in the strength and ability of sustained precision on different assemblies. With weak cartridges such as .22 LR applied in light-use scenarios, a pair of skinny aluminium rings may work well, while firearms with very powerful recoil often combined with

172-628: A combination of features of the Model 98 Mauser style and the pre- 64 or Classic model 70 Winchester style actions with M-98 style controlled-feed bolt action system with M-98 barrel to action mounting (no cone barrel cut) plus a one piece trigger guard. The Safety is of the M-70 Win style as is the trigger, there is no middle screw, as in the trigger guard of the Pre-64 M-70 Win. The MRC 1999 actions came in both left- and right-handed variations in

215-421: A complete scope mount assembly, but is most often used to refer to the lower part of a two-part scope mount assembly. The firearm interface which sits on the firearm and to which the scope mount is attached is often called the base or rail . Some types of bases are: On receivers without an integrated attachment for mounting a scope, for example, an integrated Picatinny rail, the base is usually screwed on as

258-538: A federal grand jury indicted former CFO Denis Shusterman for embezzling $ 10 million from Kimber Manufacturing and Nationwide Sports Distributors. He was later convicted after pleading guilty, ordered to pay damages and back taxes, and sentenced to 14 years in federal prison. After leaving Kimber, Greg Warne operated Armas Deportivas S.A. in Granadilla, San Pedro, Costa Rica where he made custom gun grips from locally sourced hardwoods. Greg Warne died in 2006. Kimber

301-486: A heavy sight may require steel rings or thicker aluminum rings with recoil lugs to be used. Scopes for ring mounts are available in many different sizes. The most common ones are: Some less common standards are: For a ring assembly to grip evenly, it is important that the scope rings are circular and coaxial with the scope tube. On ring mounts that grip unevenly, the ring mount can be lapped to prevent uneven pressure when mounting. One scopes made for ring mounts, it

344-662: A junkyard north of Portland . Warne soon found a financial backer in Les Edelman, who owned Nationwide Sports Distributors. The two purchased the original tooling and partnered to found Kimber of America. The company grew quickly, but Edelman forced Greg Warne out after acquiring a majority interest in the company. While Edelman was partnering with Greg Warne, he had also invested in Yonkers-based Jerico Precision Manufacturing, which manufactured hand tools and mechanical components for

387-446: A longer distance between the front and rear screw holes, and therefore continuous scope mount assemblies for the 700 LA do not fit on the 700 SA nor the above-mentioned firearms. However, two-piece scope mounts in general interchange for the mentioned models. Bases with a rounded bottom for mounting on a round receiver bridges should ideally have a slightly smaller radius than the receiver in order to provide two points of contact and give

430-589: A manufacturing facility in Troy, Alabama , in January 2018 On October 21, 2020, Kimber Arms management announced the corporate headquarters is being relocated to Troy. Kimber makes M1911-style pistols with a variety of customization options. Early on, the company introduced the use of metal injection molding for some parts, such as the thumb safety, which makes them more cost-effective to produce. Models available include: Kimber manufactures two models of revolvers,

473-614: A new pistol designed by the LAPD Special Investigation Section was added to the Kimber's line of M1911-pattern pistols. A modified Kimber 1911 was also chosen as the sidearm for Marine Corps forces assigned to Special Operations Command. Kimber Manufacturing donated $ 200,000 to the Red White and Blue Fund, a super PAC that supported Rick Santorum in 2012. Kimber was the first gun company to donate to

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516-471: A number of different lengths and diameters to fit different cartridges . They are similar to Winchester Model 70 actions in outward appearance but with more safety features. The actions are noted for being extremely strong. The rifles are based on the MRC model 1999 action. They come in 3 basic models: "Classic", "High Country" and "Tactical". A variety of stocks are available from wood to composite, as well as

559-407: A radius on the front bridge and a flat on the rear bridge. Quick release (QR) can refer to several different variants of scope mounts which can be mounted and disassembled quickly without tools. In some cases, it may be relevant to add extra inclination to the scope to be able to shoot at longer (or shorter) distance. For example, this is popular for long range shooting , where it is common to use

602-665: A reputation for accuracy and quality. A modified version of the "Team Match II" .45 ACP caliber pistol is used by the US Shooting Rapid Fire Pistol Team. In 2002, the LAPD chose a slightly modified and specially marked (marked in "LAPD SWAT CUSTOM II") version of the Custom TLE II as the standard issue for its SWAT unit. Several other law enforcement agencies have approved Kimber firearms for on-duty carry by their patrol and SWAT officers. In 2007

645-556: A second manufacturing plant in nearby Colton . Jack Warne acquired the Brownell quick-detachable rifle scope mounting system for Kimber. In the late 1980s, the company began to struggle after a private stock offering fell short of covering the costs of developing the M89 BG (Big Game) Rifle. In 1989, Kimber of Oregon was sold to Oregon timber baron Bruce Engel, who founded WTD Industries, Inc. Engel had difficulty running Kimber and soon

688-561: A separate part. Such mounts are often model-specific to the firearm, and depend on factors such as the radius of the receiver bridge, the type of screw and the distance between the screw holes. A common fastening method is by screws. These are often metric M3.5x0.6 mm or US #6–48 (⌀ 3.5 mm, 0.53 mm pitch) or #8–40 (⌀ 4.2 mm, 0.64 mm pitch). Many European assemblies use M3.5 screws, such as SAKO Optilock, Recknagel and original CZ rings. Since #6–48 and M3.5x0.6 have near identical diameters and almost equal pitch , there

731-622: A stable attachment. Conversely, a slightly too large radius on the mount will result in just one point of contact and a less stable attachment. In the table below, the radius refers to the curvature of the mounting surface on the receiver bridge. The base is often attached with two screws on the front receiver bridge and two screws on the rear receiver bridge, but sometimes with several more screws. The hole distances are measured from center-to-center. Some common hole distances are 12.7, 15.37 and 21.84 mm (0.500, 0.605 and 0.860 in) respectively). The two front screws are referred to in

774-493: A super PAC. Scope mount Scope mounts are rigid implements used to attach (typically) a telescopic sight or other types of optical sights onto a firearm . The mount can be made integral to the scope body (such as the Zeiss rail ) or, more commonly, an external fitting that clamp onto the scope tube via screw -tightened rings (similar to pipe shoes ). The scope and mount are then fastened onto compatible interfaces on

817-414: A tilt of 6  mrad (20 MOA ). Extra tilt can be achieved several ways, like for example with a tilted Picatiny rail (e.g. 6 mrad tilt), with bases or rings (e.g. 6 mrad tilt) or with special insert rings (e.g. Burris Pos-Align). The height of scope sight can be important for the cheek rest support (often called cheek weld ) to gain correct eye placement, as well as for calculating ballistics (e.g.

860-679: A variety of calibers including an emphasis on large-bore dangerous game cartridges. The rifles are described by gun writers as being high quality. Barrels were available in over 20 calibers with a variety of contours and finishes. The barrel making division of MRC was sold to Remington Arms, subsequently Remington, in liquidation sold off most of its parts. MRC made a run of special oversized short action length, Winchester Short Magnum (WSM) actions based on their 1999 action, offered with custom serial numbers. The actions were cast by Sturm Ruger, production machined by Smith & Wesson and final machined then finished by MRC. The pre-production order cost of

903-474: Is a potential for confusion, and upon mixing the wrong screw will enter the threads, but will gradually become tighter to screw until the thread is destroyed. In case of damage, the hole must often be drilled and re-threaded, and M4x0.7 or #8–40 may then be relevant alternatives. The Remington 700 Short Action (SA) scope base attachment pattern is particularly widespread, and is for example used on models such as: The Remington 700 Long Action (LA) naturally has

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946-528: Is not uncommon to get ring marks when mounting the rings. There are insert rings on the market which allows for mounting a scope inside a ring mount of a larger diameter. An example could be to mount a scope with a 1-inch (25.4 mm) tube in a 30 mm mount using a plastic insert. There are also special ring mounts in the market with circularly shaped ring inserts made to provide stress free mounting without lapping, with Burris Signature Rings and Sako Optilock Rings as two well-known examples. Burris Signature

989-626: Is planning to expand manufacturing capacity from its 31,500-square-foot (2,930 m ) manufacturing facility in Ridgefield , NJ (Aero Molding). A proposal to add more space to its Yonkers site had been approved as a "regionally significant project" but Kimber appears to have withdrawn its application following concerns raised by worried neighbors. Faced with political opposition in New York and New Jersey, Kimber explored other locations for their operations. The company announced intention to open

1032-424: Is usually meant an interconnecting part between the scope and the firearm. For example, a base may have a picatinny attachment on the underside, while the upper side may have either a ring (e.g. 30 mm) or rail mounting (e.g. Zeiss rail). On some assemblies, the upper and lower parts of the base are separate parts that must be screwed together and fastened to a specified torque. A base can thus sometimes constitute

1075-473: The de facto industry standard for scope mounting rails. The system has so far seen most use on the European high end market. The Swarovski SR rail (patented in 2002, introduced in 2005 The Swarovski SR rail is also used by Kahles, a Swarovski subsidiary. ) has a flat rail with many "teeth" as recoil lugs, and is only offered on scopes from Swarovski and its subsidiary Kahles. It separates itself from

1118-408: The barrel or stock ). Since the mid-20th century, dovetail rails , where the mount is slided over a straight dovetail bracket with an inverted isosceles trapezoid cross-section and fixed tight in position with clamping screws, became more common due to the ease of installation and removal. Later, the hexagonally cross-sectioned rail interface systems such as Weaver rail became popular and

1161-592: The K6S in either Double Action/Single Action or Double Action Only configuration chambered in .357 Magnum , and the K6xs, chambered in .38 special +P . Both revolvers have a capacity of six rounds. The K6S models are available in 2"-inch, 3" inch, and 4"-inch barrels. Kimber also makes several long gun models, including hunting and tactical rifles . Most of these rifles utilize a Mauser-type controlled feed action, originally designed by Nehemia Sirkis . Kimber rifles have

1204-505: The Model 1999 action and featured either wood or synthetic stocks and either blued or stainless barrels and actions. Kimber Manufacturing Kimber Manufacturing is an American company that designs, manufactures, and distributes small arms such as M1911 pistols , Solo pistols, rifles, and revolvers. The USA Shooting Team , Marines assigned to Special Operations Command , and the LAPD SWAT team have used Kimber pistols in

1247-789: The Montana Rifle Company ceased operations. A press release from the Montana Outdoor Group regarding the business closure indicates the ownership group will seek to restructure the company finances and will also seek new investors for an infusion of capital into the business. The press release indicates there was strong demand for the rifles but that the company was unable to scale to a level which could satisfy demand and remain profitable. In January 2024, Grace Engineering acquired Montana Rifle Company. Montana Rifle Company (MRC) offered their rifle actions, rifle barrels, barreled actions as well as complete rifles and gunsmithing services including building custom rifles. The MRC actions are

1290-551: The SS action was US$ 350.00 The WSM action was followed by the introduction of the Pro Hunter action, a square top modernized version of the legendary “square bridge” Mauser action, to fit the longest lengths and largest rim diameters of some of the very large dangerous game cartridges. The pre-production order cost of this action was US$ 500.00 In 2011, MRC introduced a new line of production rifles. The production rifles were built on

1333-508: The Zeiss rail in that it is not neither stepless nor self-centering. A former competing standard was the halv-circle shaped Schmidt & Bender Convex rail also introduced in 2005. Schmidt & Bender after a few years changed to the Zeiss rail standard. In contrast to the Zeiss and Swarovski systems, the S&;B Convex rail had the possibility to add a cant to the scope when mounting, such that

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1376-539: The company sought bankruptcy protection. In 1990, several Kimber employees, including Dan Cooper, left to found Cooper Firearms of Montana . Jack Warne left to open the Warne Manufacturing Company in February 1991, which began manufacture of a new rifle scope mounting system. In the mid-1990s, Greg Warne tried to revive Kimber, but much of Kimber of Oregon's original tooling had ended up in

1419-520: The defense industry, which was adjusting to cuts in defense spending. Edelman decided to connect Jerico Precision's existing infrastructure and manufacturing capabilities and Kimber's reputation and extensive network of dealers to build a line of M1911-style handguns. He eventually moved Kimber's production line to Jerico's facilities in New York, ending Kimber's presence in Oregon. The company now has locations in New York and New Jersey. On 9 December 2004,

1462-450: The list below as screws 1 and 2, and the front hole spacing is thus referred to as «distance 1–2». In the same way, the rear hole distance is called «distance 3–4». The distance between these is largely determined by the receiver length, and is stated here as «distance 2–3» *The radius is similar, but the screw types used vary 0–13.2 mm *Newer models have a radius on both the front and rear receiver bridges, while older models have

1505-599: The past. Kimber was founded as "Kimber of Oregon" in 1979 by Jack Warne and his son Greg Warne in the small town of Clackamas, Oregon . An Australian, Jack Warne founded the Australian firearms manufacturer, Sporting Arms or Sportco, in Adelaide, South Australia, following World War II . Following its founding, Kimber of Oregon quickly built a reputation for accurate .22 long rifle caliber rifles. Subsequently, it began to expand its product line and eventually acquired

1548-481: The reticle is not horizontal to the ground. There is an older European system with an upside-down V-shape (70 degrees). This system has little widespread use today. The advantage of this system was that it at one time was offered by most European scope manufacturers, but the disadvantage was that the rail had to be drilled for a screw each time the eye relief was to be adjusted. All new standards for rail mounts have addressed this issue. Ring mounts usually consist of

1591-663: The rings with the circular insertes was considered to have expired in 2014, and as of 2020 is listed as "definitely expired". In 2015, XTR Signature Rings was launched as a further development of the Burris Signature series. The XTR variant differs in that it has two circular cavities per ring assembly versus one. A patent for the XTR Signature Rings was applied for in 2016, and was granted to Burris in 2019. Many reflex sights (e.g. red dot sights) and holographic sights have proprietary mounts. By bases,

1634-404: The scope sight ( sightline ). With regard to cheek support, several methods are used: On firearms with a picatinny rail, the height is measured from the top of the picatinny rail on the firearm. On most other types of bases it is common to measure from the top radius of the receiver bridge. When the bottom measuring point is determined, the height is then measured up to either the optical center or

1677-537: The section on Link between scope and firearm ). Scope mounts may be offered by firearm and scope manufacturers, or bought as aftermarket accessories. Among scopes for rail mounts, the 22.5-degree V-shaped Zeiss rail is the most prevalent standard. It was introduced in 1990. After the patent expired in 2008, compatible scopes have been offered from manufacturers such as Blaser , Leica , Minox , Meopta , Nikon , Noblex (formerly Docter ), Schmidt & Bender and Steiner . It has therefore, in some sense, become

1720-472: The use of torque screwdrivers ), but sometimes they are manually tightened via thumbscrews , and may even have Quick Release (QR) designs. As of 2020, the Picatinny rail is arguably the most widespread scope mounting standard for new firearms, although there are many proprietary and brand-specific types of mounts that can either be used with Picatinny rails, or as completely different design alternatives (see

1763-435: The weapon. Words such as mounts and bases are used somewhat loosely, and can refer to several different parts which are either used together or in place of each other as ways to mount optical sights to firearms. Attachment interfaces for scope mounts vary according to weapon design and user choice. Traditionally scope mounts are fastened onto firearms via tapped screw holes (usually on the receiver ) and/or clamps (onto

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1806-545: Was introduced in 1995. A patent was applied for in 1994, and was granted in 1995. Sako Optilock has been sold since some time in the early 2000s. The trade name Optilock was registered in the US in December 1997, and has been marketed in the US since December 2001. In 2000, Sako was sold to Beretta Holding . In 2002, Burris was also sold to Beretta Holding, and thus Burris and Sako got the same owners. Burris' original patent for

1849-650: Was later modified into the Picatinny rail in the early 1990s, which became the standardized military-use mounting interface for NATO troops in 1995. The Picatinny rail was officially replaced by the metrified NATO Accessory Rail for military use in 2009, although it remained popular in the civilian market for both scope and accessory mounting. Scope mounts can be either one-piece (a single implement with multiple clamping rings) or multi-piece (usually two or more individual scope rings). These mounts are usually fastened with screws to specified tensions (which warrants

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