The APR (Advanced Precision Rifle) is a bolt-action sniper rifle designed by the Thun -based Brügger & Thomet in 2003 as an evolution of the French PGM Précision .
51-670: In 2003, B&T who was then a long-time supplier of PGM rifles, competed in a tender to sell the French-made but Swiss modified rifle to the Singapore Army , which at the time was planning to acquire a new 7.62×51mm NATO precision rifle. After some confusing communication with PGM Précision over who had the rights to sell the PGM 7.62mm sniper rifle to the Singaporean Army, Brügger & Thomet decided in 2003 to improve
102-549: A force-multiplier and a means to sustain combat power given Singapore's population constraints. Jointness across four branches of the SAF is integral to the Army's warfighting doctrine. Joint operations undertaken with the Navy and Air Force include amphibious landings and critical disaster relief operations in the aftermath of the 2004 Indian Ocean earthquake and tsunami . The Army has
153-523: A combined arms, tri-service affair involving the Navy and Air Force. Because training space is limited in Singapore—artillery fire would quickly traverse the island—some military exercises are conducted overseas. Reservists periodically train abroad, their units regularly evaluated for combat readiness. The Army also trains bilaterally with some host nations, and military exchanges are frequent. Training
204-503: A drop safety device and can only be used with subsonic ammunition (200–240 gr projectiles). The APR308 rifle was also used to develop a larger variant intended for use at extended ranges. The APR338 chambered for the .338 Lapua Magnum round was first introduced at the 2007 Milipol exhibition in Paris and became available in 2008. The APR338 system is designed to handle cartridges up to 94 mm (3.70 in) overall length. The APR338
255-476: A housing, in which a locking ring is permanently fixed, and a Picatinny rail as an interface to the rifle scope. Integrated in this scope mount rail is the rear part of the emergency iron sight , designed as a factory zeroed flip-up sight. Into the locking ring, the bolt locks by rotation; thus, the receiver with locking ring, bolt and barrel form the breech of the rifle. The APR rifle has a traditional manually operated rotary bolt with three radial locking lugs at
306-793: A lower maximum chamber pressure compared to the .308 Winchester). The APR308 system is designed to handle cartridges up to 71.3 mm (2.81 in) in overall length. With recommended ammunition the APR308's accuracy should be ≤ 1 MOA at any practical range. Brügger & Thomet specifies the rifle provides a ≥ R 99 (99% or better) first hit probability against a head-sized target at 400 m and torso-sized target at 800 m. The specified maximum effective range with appropriate ammunition (RUAG Swiss P 10.87 g (168 gr) recommended for mid-range applications up to 600 m, Norma Diamond Line 12.31 g (190 gr)—recommended for long range applications up to 1,000 m), Lapua D46 12 g (185 gr) (suitable for military applications)
357-496: A metal lower receiver that functions as a main frame or chassis to which all other rifle components are assembled or attached. The manual ambidextrous safety is integrated into the lower receiver. This chassis houses the upper receiver which consists of a bolt group and barrel , as well as the fire control group, folding butt stock and other furniture. The contact surface between the upper and lower receiver functions as an unconventional bedding surface. The upper receiver consists of
408-425: A proprietary stadiametric rangefinding reticle layout made exclusively for Brügger & Thomet. The TRS scope is meant to be mounted with a Brügger & Thomet mounting set consisting of two scope rings, where the front ring provides an adaptor for Simrad KN night sights . Those rings are attached to a Picatinny interface on the rifle's upper receiver. The scope and mount are clamped on the rifle's Picatinny rail by
459-491: A technically proficient, relatively well-educated draftee pool and officer corps (non-commissioned and commissioned) reflective of the population at large, and has sought to leverage this to ease its transition into a more sophisticated, networked fighting force. Combat readiness is a linchpin of Army policy, and military exercises up to divisional level are conducted many times yearly, simulating full-spectrum operations, up to and including full-scale war. Divisional war games are
510-768: Is " Yang Pertama Dan Utama " ("first and foremost" in Malay). Two stalks of laurel flank the escutcheon. The laurels are green for the Singapore Army and gold for the Singapore Armed Forces . The Singapore Army has participated in peacekeeping operations overseas. In the aftermath of the Gulf War , Singapore contributed to the United Nations Iraq–Kuwait Observation Mission (UNIKOM) formed in 1991. From May 2007 to June 2013,
561-419: Is " ultrasonic ", but the older meaning sometimes still lives on, as in the word superheterodyne The tip of a bullwhip is generally seen as the first object designed to reach the speed of sound. This action results in its telltale "crack", which is actually just a sonic boom . The first human-made supersonic boom was likely caused by a piece of common cloth, leading to the whip's eventual development. It's
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#1732790930701612-471: Is 1,000 meters. As a manufacturer of firearm sound suppressors, Brügger & Thomet also offers quick-detachable suppressors for the APR series. The APR308 GRS suppressor reduces the acoustical report of the weapon by 36 dB(A) and also reduces the optical muzzle signature. Other accessories supplied with the rifle include a lightweight soft case for transporting the APR, a triple rail interface which fits to
663-484: Is billed as "tough, realistic and safe," with a premium on safety, given the sensitivity of military deaths in a largely conscript army. Following the revolution in military affairs , and in tandem with modernising its weapons systems, the Army is forging a transition to a more network-centric fighting doctrine that better integrates the Air Force and Navy. The Singapore Army originated with two infantry battalions,
714-428: Is crack formation faster than the speed of sound in a brittle material. The word supersonic comes from two Latin derived words ; 1) super : above and 2) sonus : sound, which together mean above sound, or faster than sound. At the beginning of the 20th century, the term "supersonic" was used as an adjective to describe sound whose frequency is above the range of normal human hearing. The modern term for this meaning
765-468: Is in charge of counter-terrorism and homeland security , and two are army operational reserves (AOR). The three combined arms divisions are the 3rd Division (3 DIV), 6th Division (6 DIV) and 9th Division (9 DIV), each of which has active and reserve units that are operationally ready and capable of being mobilised in the event of war. The 2nd People's Defence Force (2 PDF) is in charge of counter-terrorism and homeland security , including
816-498: Is intended as a military long range anti-personnel rifle. Brügger & Thomet specifies the rifle provides a 99% or higher first hit probability against a head-sized target up to 600 m or a torso-sized target at 1,300 m with appropriate ammunition (Lapua Scenar 250 grain recommended). The rifle's barrel has an unconventional 279 mm (1:11 in) right-hand twist rate, optimized for firing .338-calibre very-low-drag bullets up to 16.85 g (260 gr). Longer, heavier very-low-drag bullets like
867-408: Is located above the pistol grip. The APR308 has a side-folding stock which is attached to the lower receiver with a rugged steel hinge. It offers an adjustable butt plate and length of pull spacer system. The cheek-rest is also fully adjustable, which is an uncommon feature, as most folding stocks do not allow for customisation. An additional folding height-adjustable monopod is attached to the rear of
918-444: Is more complex. The main key to having low supersonic drag is to properly shape the overall aircraft to be long and thin, and close to a "perfect" shape, the von Karman ogive or Sears-Haack body . This has led to almost every supersonic cruising aircraft looking very similar to every other, with a very long and slender fuselage and large delta wings, cf. SR-71 , Concorde , etc. Although not ideal for passenger aircraft, this shaping
969-420: Is rated at a recoil reduction of 40%. It also serves as a mounting point for a quick-detachable sound suppressor and includes a thread protector to protect the thread if no suppressor is attached. The APR308's barrel accuracy life is estimated at 7,000 rounds. At its chamber end, the barrel becomes screwed into the receiver and presses into the upper receiver's locking ring. For the .308 Winchester chambering,
1020-573: Is the land service branch of the Singapore Armed Forces (SAF). The largest of the four branches of the SAF, the Singapore Army traces its origins to the 1st Battalion, Singapore Infantry Regiment (1 SIR), which was formed in 1957, when Singapore was still under British colonial rule. After Singapore's independence on 9 August 1965, the Singapore Army Bill was passed in Parliament on 23 December 1965, and National Service (NS)
1071-476: Is to be used exclusively with optical sights, as the iron sights were removed. The rifle also lacks a drop safety, present in the standard, military version and because of the reduced barrel the effective range has dropped to 600 m. A sound-suppressed version of the APR308 is the APR308S with a 400 mm (15.7 in) barrel and integral sound suppressor. This model too is not fitted with back-up iron sights or
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#17327909307011122-454: The 1st and 2nd Battalions, Singapore Infantry Regiment (1 SIR and 2 SIR), which were respectively formed in 1957 and 1962 when Singapore was still a British colony. After a merger with Malaysia which resulted in separation in 1965, Singapore passed the Singapore Army Bill in Parliament on 23 December 1965 and gained complete control of the two battalions from Malaysia in January 1966. At
1173-549: The Accuracy International Arctic Warfare and Sako TRG product lines. All these rifles are comparable performance-wise. The APR system is a purpose-designed modular sniper rifle system, rather than an accurized version of an existing, general-purpose rifle. According to the manufacturer, although being a precision-instrument, the APR system will resist harsh military use and remain functional in typical operational environments. The APR uses
1224-545: The COVID-19 pandemic and the vehicle was put up for sale. Most modern fighter aircraft are supersonic aircraft. No modern-day passenger aircraft are capable of supersonic speed, but there have been supersonic passenger aircraft , namely Concorde and the Tupolev Tu-144 . Both of these passenger aircraft and some modern fighters are also capable of supercruise , a condition of sustained supersonic flight without
1275-594: The ThrustSSC . The vehicle, driven by Andy Green , holds the world land speed record, having achieved an average speed on its bi-directional run of 1,228 km/h (763 mph) in the Black Rock Desert on 15 October 1997. The Bloodhound LSR project planned an attempt on the record in 2020 at Hakskeenpan in South Africa with a combination jet and hybrid rocket propelled car. The aim was to break
1326-562: The Tupolev Tu-160 and Rockwell B-1 Lancer are also supersonic-capable. The aerodynamics of supersonic aircraft is simpler than subsonic aerodynamics because the airsheets at different points along the plane often cannot affect each other. Supersonic jets and rocket vehicles require several times greater thrust to push through the extra aerodynamic drag experienced within the transonic region (around Mach 0.85–1.2). At these speeds aerospace engineers can gently guide air around
1377-524: The fuselage of the aircraft without producing new shock waves , but any change in cross area farther down the vehicle leads to shock waves along the body. Designers use the Supersonic area rule and the Whitcomb area rule to minimize sudden changes in size. However, in practical applications, a supersonic aircraft must operate stably in both subsonic and supersonic profiles, hence aerodynamic design
1428-467: The speed of sound decreases somewhat with altitude, due to lower temperatures found there (typically up to 25 km). At even higher altitudes the temperature starts increasing, with the corresponding increase in the speed of sound. When an inflated balloon is burst, the torn pieces of latex contract at supersonic speed, which contributes to the sharp and loud popping noise. To date, only one land vehicle has officially travelled at supersonic speed,
1479-546: The wave motion travelling through the bullwhip that makes it capable of achieving supersonic speeds. Most modern firearm bullets are supersonic, with rifle projectiles often travelling at speeds approaching and in some cases well exceeding Mach 3 . Most spacecraft are supersonic at least during portions of their reentry, though the effects on the spacecraft are reduced by low air densities. During ascent, launch vehicles generally avoid going supersonic below 30 km (~98,400 feet) to reduce air drag. Note that
1530-510: The 280 mm (1:11 in) right-hand rifling twist rate with four grooves was selected over the 305 mm (1:12 in) twist traditionally used with .308 Winchester ammunition, as a compromise when switching between supersonic and subsonic cartridges and facilitating the use of 7.62mm projectiles up to 19.96 g (200 gr). Every APR rifle is equipped with a MIL-STD-1913 rail on top of the upper receiver for mounting components to accommodate different types of optical or electro-optical sights, with
1581-710: The General Staff, there is also a Chief Systems Integration Officer and a Head of the Army Information Centre. The commanders of Training & Doctrine Command (TRADOC), Combat Service Support (CSS), the four main divisions , the two operational reserve divisions, the 15 formations of the Army, and the SAF Volunteer Corps also report to the Chief of Army. The Army has six divisions, of which three are combined arms divisions, one
Brügger & Thomet APR - Misplaced Pages Continue
1632-642: The Island Defence Task Force (IDTF), Joint Task Force (JTF), Special Operations Task Force (SOTF) and the Army Deployment Force (ADF). Supersonic Supersonic speed is the speed of an object that exceeds the speed of sound ( Mach 1). For objects traveling in dry air of a temperature of 20 °C (68 °F) at sea level , this speed is approximately 343.2 m/s (1,126 ft/s; 768 mph; 667.1 kn; 1,236 km/h). Speeds greater than five times
1683-531: The National Service (Amendment) Act, introducing National Service ( conscription ) for all able-bodied young men aged 18 and above. In June 1967, the Singapore Army introduced its first artillery battalion, the 20th Singapore Artillery Battalion (20 SAB). Two new infantry battalions, the 3rd and 4th Battalions, Singapore Infantry Regiment (3 SIR and 4 SIR) were formed in August 1967. In November 1968,
1734-546: The PGM rifle and produce the new design at their own manufacturing facility in Switzerland. The Brügger & Thomet APR308 sniper rifle was first presented to the public at the 2005 Milipol exhibition and since then has been adopted as a standard sniper rifle by the Singapore Army. The APR's main commercial competitors/equivalents on the high-end factory sniper rifle market are beside the PGM Précision product line,
1785-512: The Sergeant Major of the Army. The General Staff consists of six branches from G1 to G6, as well as a National Service Affairs Department handling National Service issues, and an Army Safety Inspectorate. The six branches handle issues relating to personnel (G1), intelligence (G2), operations (G3), logistics (G4), plans (G5) and training (G6). The G1, G2, G3, G5, and G6 branches are each headed by an Assistant Chief of General Staff. Among
1836-499: The Sierra HPBT MatchKing .338-calibre 19.44 g (300 gr) can be used, but require a 254 mm (1:10 in) twist rate to stabilize them under high air density conditions as found on arctic coasts. The APR338 barrel accuracy life is estimated at 2,500 rounds. The rifle can be employed with an APR338 GRS suppressor, which reduces the acoustical signature by up to 25 dB(A). Singapore Army The Singapore Army
1887-637: The Singapore Army deployed about 500 personnel to join the International Security Assistance Force (ISAF) in maintaining stability and assist in reconstruction in war-torn Afghanistan . Since 2014, the Singapore Army has provided logistical support to the international coalition in the War against the Islamic State . The Army is headed by the Chief of Army, who is assisted by the Chief of Staff – General Staff and
1938-666: The Singapore Army's first armoured battalion, 41st Battalion, Singapore Armoured Regiment (41 SAR), was formed. This was followed by the creation of the 1st Commando Battalion (1 Cdo Bn) in December 1969. In 1972, Parliament passed the Singapore Armed Forces Act to reorganise and consolidate the Singapore Armed Forces ' disparate commands and administrative functions. The emblem's escutcheon reads " Tentera Singapura " (meaning "Singapore Army" in Malay). The national coat of arms sits in its interior. The motto
1989-403: The bolt. The magazine feeds through the lower receiver into the upper receiver and is held by a magazine catch, which is integrated into the trigger group. The free-floating forged fluted barrels have appropriate attachments for a factory-provided steel muzzle brake that carries the front part of the emergency sight, which therefore never has to be removed. The muzzle brake's effectiveness
2040-399: The buttstock and allows the shooter to rest the rifle during extended periods of observation. The weapon's stock is made of a polymer material and is attached to the lower receiver. It has provisions for mounting a folding height-adjustable bipod . The APR feed system consists of a detachable 10-round stainless steel box magazine . When the magazine is empty, it stops the forward motion of
2091-460: The existing record, then make further attempts during which (the members of) the team hoped to reach speeds of up to 1,600 km/h (1,000 mph). The effort was originally run by Richard Noble who was the leader of the ThrustSSC project, however following funding issues in 2018, the team was bought by Ian Warhurst and renamed Bloodhound LSR. Later the project was indefinitely delayed due to
Brügger & Thomet APR - Misplaced Pages Continue
2142-432: The front. The bolt requires only a 60° bolt rotation. The trigger group, manual safety and pistol grip consist of one detachable module attached under the receiver. This group consists of a fully adjustable two-stage trigger featuring an adjustable trigger pull weight of 1.5 to 2.5 kg (3.3 to 5.5 lb) and a trigger path that can be externally adjusted without disassembly of the unit. An ambidextrous manual safety
2193-636: The objects move faster than the speed at which sound propagates through the medium. In gases, sound travels longitudinally at different speeds, mostly depending on the molecular mass and temperature of the gas, and pressure has little effect. Since air temperature and composition varies significantly with altitude, the speed of sound, and Mach numbers for a steadily moving object may change. In water at room temperature supersonic speed means any speed greater than 1,440 m/s (4,724 ft/s). In solids, sound waves can be polarized longitudinally or transversely and have higher velocities. Supersonic fracture
2244-411: The option to mount three extra rails on the stock for attaching tactical accessories. The rifle can be equipped with an optional folding front sight and an aperture-type rear sight. Iron sights cannot be mounted on integrally silenced APR models. Brügger & Thomet offers a proprietary TRS (Tactical Rifle Scope) telescopic sight for the APR. The TRS is a Schmidt & Bender PMII 3-12×50 LP scope with
2295-638: The protection of key military and civilian installations around Singapore. It is also responsible for the coordination and secondment of military resources to civilian agencies in the event of a civil emergency. The two AOR divisions are the 21st Division (21 DIV) and 25th Division (25 DIV). The Army has 15 formations: Ammunition Command , Armour , Army Intelligence , Army Medical Services , Artillery , Combat Engineers , Commandos , Guards , Infantry , Maintenance and Engineering Support , Military Police Command , Personnel Command , Signals , Supply , and Transport . The Army has task forces such as
2346-421: The speed of sound (Mach 5) are often referred to as hypersonic . Flights during which only some parts of the air surrounding an object, such as the ends of rotor blades, reach supersonic speeds are called transonic . This occurs typically somewhere between Mach 0.8 and Mach 1.2. Sounds are traveling vibrations in the form of pressure waves in an elastic medium. Objects move at supersonic speed when
2397-519: The tension of two levers, allowing the operator to quickly remove the scope in case of failure or while cleaning or during transit. Detaching and attaching the scope repeatedly will not affect the zero. APR rifles can be equipped with an anti-mirage band to suppress mirage caused by air heated by a warm barrel during extended training sessions. The APR308 is chambered to fire the .308 Winchester cartridge as well as its military equivalent— 7.62×51mm NATO (which has slightly different chamber specifications and
2448-573: The time, the Singapore Army had only the two infantry battalions and the old Singapore Volunteer Artillery Corps . Months later, the Army had a reserve force , the People's Defence Force , which was formed from an old volunteer unit mobilised for service during the Indonesia–Malaysia confrontation . A third battalion, the 10th Battalion, People's Defence Force (10 PDF), was raised as a volunteer infantry reserve battalion. In 1967, Parliament passed
2499-405: The use of an afterburner . Due to its ability to supercruise for several hours and the relatively high frequency of flight over several decades, Concorde spent more time flying supersonically than all other aircraft combined by a considerable margin. Since Concorde's final retirement flight on November 26, 2003, there are no supersonic passenger aircraft left in service. Some large bombers , such as
2550-429: The weapon's chassis without any modification and provides three additional Picatinny rails that can be used to mount night vision equipment other than Simrad, laser aiming/designation devices or illumination tools. The APR308 is available in several specialized variants. The APR308P was designed for tactical police applications and has a shorter, 500 mm (19.7 in) barrel with a different muzzle device. The rifle
2601-584: Was subsequently introduced in 1967. Mostly made up of conscripts, the Singapore Army can mobilise all operationally-ready military reservists in the event of war or national exigencies. The mission of the Singapore Armed Forces (SAF) is to deter armed aggression, and to secure a swift and decisive victory should deterrence fail. The Army is also tasked with conducting peace-time operations to further Singapore's national interests and foreign policy. These range from disaster relief to peacekeeping, hostage rescue and other contingencies. The Army views technology as
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