The Navy approached Bofors about the development of a more capable replacement. The 20 mm caliber is a common firearm bore diameter, typically used to distinguish smaller-caliber weapons, commonly called "guns", from larger-caliber "cannons" (e.g. The gun is designed to be compact. Their first test gun was a re-… [51] The system lacked moving parts and the propellant was electronically primed,[51] allowing for rates of fire up to one million rounds per minute. Against low-flying aircraft (HE round) L70: 914 m (1,000 yd) ... Italy, and North Western Europe, until the introduction of the Bofors 40/L60 40mm gun from 1943, although many squadrons retained a mix of guns until the end of World War 2. If time was available for setup, the gunners used the tow-bar and muzzle lock as levers, raising the wheels off the ground and thereby lowering the gun onto supporting pads. Products. In most cases, these were the ground anti-aircraft versions, as a suitable replacement in this role did not come along until the introduction of truly effective MANPADS missiles in the 1980s. Sweden currently operates the Mk 19 grenade launcher (designated 40 mm granatspruta 92 in Sweden) and thus uses the 40 mm high velocity cartridge. Here is a quick video overview of the "Cannon Shell" from reloadable shells dot com. This mount allowed the gun to be fired from the carriage with no setup required, although with limited accuracy. Direct Impact® LE 40 mm Extended Range Inert Crushable Foam Round Model: 6323LE. [48], Today it is used primarily by the Russian Armed Forces in weapons such as the GP-34, BG-15 Mukha and RG-6. As the round enters the chamber, its base comes into contact with the extractors, pulls them forward, and disengages the extractor hooks from the breech block. The L/60 saw active service with the Argentinian and British navies in the 1982 Falklands War and continued to be used into the 1990s, when it was replaced by modern 20 mm and 30 mm artillery. Introduced around the Second World War, the Bofors 40 mm gave itself a good name due to its reliability as a cannon and general effectiveness. Practice, featuring a small flash sharge and smoke signal. With the fall of western Europe in 1940 the Dutch mine-layer Willem van der Zaan brought them their first example of a water-cooled gun on their Hazemeyer tri-axially stabilized mounting. $ 114.95 Read more. Called small arms grenade munitions (SAGMs), they double the lethality of the standard M433 grenade round by adding a small "smart" fuze sensor that detonates in the air to hit targets in cover or behind obstacles. [24] These were removed from service during 2007; Bofors were used aboard almost every RAN ship to operate between the 1940s and the 1990s, including the aircraft carriers Sydney and Melbourne.[24]. Squadrons in the Far East were equipped exclusively with Oerlikons. Додатне слике . Direct Impact® LE 40 mm Extended Range Marking Crushable Foam Round Model: 6326LE. Always practice range and reloading safety. The UK's RAF Regiment adopted the L70 to replace its L60 guns in 1957, retiring its last examples in 1977 and replacing them with the Rapier system. This new round uses our proven 40 MM Cannon Round base, well-established and used on all of our 40 MM casings. Rae, CJE, Harris, AL, and Bryant, RK (1987), This page was last edited on 10 February 2021, at 17:28. The construction is similar to the one used in 40×46mm grenades, but they are not interchangeable. In German naval use, the gun was designated the "4 cm Flak 28", and was used aboard the cruisers Admiral Hipper and Prinz Eugen toward the end of the war. And the introduction of a 40mm proximity fuzed round in the early 1970's which gave the gun system a new lease on life. This practice was further developed during operations in North-West Europe, where bursts of colour-coded tracer were used to define the axis of advance of the different formations in large-scale night attacks. Japan captured a number of Bofors guns in Singapore and put them into production as the Type 5. RAPIDFire, a true joint solution, will thus be a gun system capable of equipping naval, land and air forces. 30mm x 173 MK44 Cannon Ammunition Suite; 40mm M1001 HVCC; Close; Large Caliber. A 220 V diesel generator was mounted onto the undercarriage. In the end they did both. [9] Over the lifetime of the production, their engineers introduced numerous additional changes to improve mass production, eventually reducing the overall time needed to build a gun by half; most of these changes were in production methods rather than the design of the gun itself. Breda (now Oto Melara) of Italy uses the Bofors 40 mm L/70 gun in its anti-aircraft weapon systems Type 64, Type 106, Type 107, Type 564 and Type 520. Thanks for the A2A! Integrated sensors and logic devices scan and filter the environment and then autonomously airburst the fuze without needing to be told to by the firer, thereby not requiring the soldier to carry extra weapon accessories. They also designed a much lighter two-wheeled carriage for airborne use. Photo Zone: The Canon EF 17-40mm … In order to effectively engage these threats, the gun would have to have longer range and a higher rate of fire, thereby increasing the number of rounds fired over the period of an engagement. Nope", "AC-130W Stinger II - U.S. Air Force > Fact Sheet Display", "AC-130J Ghostrider - U.S. Air Force > Fact Sheet Display", "AMMUNITION 40mm x 365 FOR ANTI-AIRCRAFT GUN 40mm L/70 BOFORS - SDPR - Yugoimport", "L/70 L70 L-70 Bofors 40mm automatic anti-aircraft gun air defence system technical data sheet", "Abhay (Fearless) Infantry Fighting Vehicle (IFV)", Bofors L/70 40mm automatic anti-aircraft gun, "The military situation in the Baltic States", "Finnish "Lighthouse Battleships" at Dieselpunk.org", International Institute for Strategic Studies. Testing showed that aiming the guns against high-speed aircraft was a serious problem. The first order for the "real" L/60 was made by the Dutch Navy, who ordered five twin-gun mounts for the cruiser De Ruyter in August 1934. Fitted for remote, Mark II: quadruple version similar to Mark I. As of 2012, the L/60 is still in use by the military of Brazil, Indonesia, Paraguay and Taiwan. [6] It was accepted into the Swedish Army the next year, known as the "40 mm lvakan m/36", the lower-case "m" indicating an Army model as opposed to the capital "M" for Navy. In U.S. Army and Marine Corps service, the single mount Bofors was known as the 40 mm Automatic Gun M1. The Army awarded four contracts to three United States companies to test designs. It was used in both ground and ship-mounted roles. 40 mm grenade (alternative spelling: 40mm grenade) is a common design for grenade launcher ammunition. [17] All of these unit types also included other AA weapons. The maximum attainable ceiling was 7,200 m (23,600 ft), but the practical maximum was about 3,800 m (12,500 ft). [52], The 40 mm grenades used in the systems were off the shelf existing warheads converted to function in the design. The Mark VI was a sextuple mount using the air-cooled Mark IX gun and used a 36-round ammunition tray for each gun rather than the usual four-round clips. The donor was a steward's boy on board the SS Orari, in 1942, when the convoy was attacked on 15 June 1942, shortly after clearing the island of Pantelleria en route for Malta. Comme le calibre 25 mm, le calibre 30 mm n'est pas un projectile antipersonnel.Il est plutôt un projectile antimatériel ou un obus destiné à percer les blindages. The 40mm Tracker Cannon (Otherwise known as the 40mm Titan Heavy Rifle or "40 mil")is a Titan weapon in Titanfall 2.It is semi-automatic, firing explosive rounds that establish partial locks when used by a Tone Titan.. Overview. In spite of the successful development, the Swedish Navy changed its mind and decided it needed a smaller hand-traversed weapon of 13 mm-25 mm size, and tested various designs from foreign suppliers. A formal contract with Bofors was reached in June 1941. This one-piece cannon round utilizes a .45 ACP casing with a .45ACP copper gas check. ATK Develops Enhanced 30/40mm Mk44 Bushmaster Cannon System ATK’s Enhanced 40mm Cannon System Offers a Cost Effective, Compact and Lightweight Solution for Ground Combat Vehicles. [11], There were many difficulties in producing the guns within the United States, beyond their complexity (illustrated by the use of 2,000 subcontractors in 330 cities and 12 Chrysler factories to make and assemble the parts). The guns were later removed as the subs were modified with streamlined conning towers. This is a very powerful casing, so I do not recommend firing it out of launchers that are not Mil Spec, or of very stout construction with the 20 grain loading. The Royal Navy also made extensive use of the Bofors. In order to fit inside the vehicle, the gun is mounted upside down. Several types exist but the most common version is the default VOG-25 high explosive version. 105mm C76A1 KE; 105mm M456A2 HEAT-T; 105mm M490 TP-T ; 105mm M724A2 TPDS-T; 120mm IM HE-T™ 120mm KE-W A1® 120mm M1002 TPMP-T; 120mm M1028 Canister; 120mm M865 TPCSDS-T; Close; Artillery. Check out 40mm Cannon Fires a Single Round by Sound Effects on Amazon Music. Hello Select your address Best Sellers Today's Deals New Releases Electronics Books Customer Service Gift Ideas Home Computers Gift Cards Sell The Bofors 40 mm L/60 AA gun (1.6 inch) was one of the most popular naval anti-aircraft guns during World War II, used long after the war in a variety of roles. Stream ad-free or purchase CD's and MP3s now on Amazon.co.uk. During World War II, the twin mount version of the gun was mounted on an M24 Chaffee tank chassis as the M19 Gun Motor Carriage. The Swedish Navy purchased a number of 2-pounder Pom-Poms from Vickers as anti-aircraft guns in 1922. The ammunition was based on the 40x158R cartridge case of the naval 2 pdr Anti-aircraft gun (the "Pom-pom"). 40×47mm is a cartridge caliber produced in Poland for their Pallad wz. Power for the sights was supplied from a 6V battery. The cannon comes with a suite of ammunition, including a point-detonating round, an airburst capability and an armor-piercing round. The Bofors 40 mm gun, often referred to simply as the Bofors gun,[4] is an anti-aircraft autocannon designed in the 1930s by the Swedish arms manufacturer AB Bofors. Production of Romanian 40 mm low velocity ammunition is handled by the arms factory Uzina Mecanica Plopeni,[26] a subsidiary of ROMARM. 40MM XD Pro High Performance Shell. [9], The United States Navy's Bureau of Ordnance purchased a twin-mount air-cooled example, spare parts and 3,000 rounds of ammunition directly from Bofors, which arrived in New York on 28 August 1940 aboard the Army transport USAT American Legion, which had evacuated 897 people, including members of the Norwegian royal family, through the Finnish port of Petsamo. ", "Chrysler Corporation, Gun Maker: Bofors Guns of World War II", "TO&E 44-25, AAA Auto-Weapons Battalion, Mobile", "385th AAA Auto-Weapons Battalion website", "Divisional Special Weapons Battalion at Gyrene.org", "USA Bofors 40 mm L/60 Model 1936 - NavWeaps", "La Marine évalue un nouveau système d'armement pour ses navires de défense côtière", "A Spookier Spooky, 30mm at a Time? The newest 40 MM XD PRO base! Effective range is 2,200 yd (2,000 m) for full-caliber high-explosive or armor-piercing ammunition, which can be extended when using sub-caliber rounds. The image below shows a fragmentation comparison between a 30mm airburst round (left) and the 40mm GPR-AB. The resulting Mark 1 and Mark 2 weapons were intended for the left and right side of a twin mount, respectively, and were adapted by Chrysler for water cooling. The SAGM was to undergo evaluation in July 2015 and, if successful, transition into an official Army program of record by the end of the year. Mark Axworthy, London: Arms and Armour, 1995, "Swedish Antiaircraft Artillery: Bofors 40mm Automatic Gun M1", "Bofors 40mm (Series) Towed Anti-Aircraft Gun / Air Defense Gun - Sweden", "Sweden Bofors 40 mm/60 (1.57") Model 1936", "The Kingston Class: 'Mid-Life' or Move Over for the MCDV? The propellant has low pressure and gives the projectile an average velocity of 78–120 m/s (256–394 ft/s) depending on the ammunition type.[26]. The cased telescoped (CT) 40mm cannon will be used in the new Ajax Reconnaissance tank and an upgraded British Army Warrior AFV. [9][10] York Safe & Lock also produced the weapons, though its attempts to coordinate drawings across the program were unsuccessful, and this responsibility was transferred to the Naval Gun Factory in July 1943. A successful demonstration occurred in November 2013. The MK281 was introduced into parts of the U.S. Armed Forces because of an executive order mandating that they buy green ammunition. [28] Not only does the fuze burst over walls, but it can detonate when passing cover like trees, bursting just as it senses and passes the trunk. The factory issue 40mm Cannon is a semi-automatic weapon that fires a high-explosive round with good accuracy. 40 MM Antiaircraft Gun, OP 820, 1943, is a Navy service manual for the most widely used anti-aircraft gun of WW II. It also includes a highly effective airburst round. Testing of this gun in 1929 demonstrated that a problem existed feeding the weapon in order to maintain a reasonable rate of fire. II high-explosive shell as well as the M81A1 armor-piercing round, which was capable of penetrating some 50 mm of homogeneous armor plate at a range of 500 yards. The lethal area for the airburst nature at 1,500m is 125m2. The 40mm cannon fires six different kinds of rounds, able to take out a variety of armored vehicles and even older tanks. The CTAS is described by several components; 40mm CT Cannon (CTC), Ammunition Handling System (AHS), CTAS Controller (CTAS-C), Gun Control Equipment (GCE), Gun Mount and a range of ammunition. In the gun armed versions of the Swedish Army Combat Vehicle 90 there is a cartridge fed, automatic version of the L/70 autocannon installed. STAAG Mark I carried the radar dish over the gun barrels where it was subject to damage during firing, therefore STAAG Mark II shifted the set to the roof of the control cabin. Space saving. Its purpose is to be an intermediate cartridge between the 40×46mm low velocity and 40×53mm high velocity cartridges and is thus referred to as 40 mm medium velocity. The MK281 is manufactured by an American subsidiary of the Rheinmetall Group. Reminds me of the G11 rifle too, although it seems to have a case for the round. In 1938 the United States Army introduced a 37 mm gun of their own design, but found it to be of limited performance. If an unprogrammed round is fired, it will detonate on impact. The 40mm L/60 Guns. The propellant has low pressure and gives the projectile an average velocity of 78–84 m/s (256–276 ft/s) depending on the ammunition type. The gun was considered so important to the defence of Britain after the fall of France in 1940 that a movie, The Gun, was produced to encourage machinists to work harder and complete more of them. The drawings were metric, in Swedish and read from the first angle of projection. Two retired L/60s can be seen adjacent the square in Sarsfield Barracks, Limerick. I’m not going to lie: the build quality of the 50mm is pretty terrible. The Anti-Aerial Air Burst (A3B) has a longer range and a payload of tungsten pellets designed to defeat airborne targets. The director then aimed the guns directly through powered mounts, as the gunners loaded the clips. The 40mm Bofors Anti-Aircraft Gun is a flak cannon used for anti-aircraft purposes. 40mm grenade launcher ammunition. New armour piercing and programmable ammunition have also been developed. Sweden currently operates the M203 grenade launcher (designated Granattillsats 40 mm Automatkarbin in Sweden) and thus uses the 40 mm low velocity cartridge. Locally produced examples started arriving in 1942, known as the "QF 40 mm Mark IV" for use in twin-mounts, or the "QF 40 mm Mark V" for single mounts. The new cannon fires 40mm Cased Telescoped Ammunition – the first of its kind in the world – offering a number of benefits to users: Fire power The new cannon delivers up to four times the power of the 30mm round it replaces. [4], AB, Air Burst[9][10]Octol filled fragmentation grenade with a time fuze. 40×46mm LV (low velocity),[2] is a NATO-standard[3] high-low grenade launcher cartridge meant for hand-held grenade launchers, such as the M79, M203, Milkor MGL, Heckler & Koch AG36, and many more. Firing the Round. In combat it was found that the Kerrison was difficult to set up to use in many situations, as well as making logistics more complex due to the need to keep its electrical generator supplied with fuel. These projectiles are typically 75 to 127 mm (3–5 in) long, cartridge cases are typically 75 to … This would be a normal configuration for lead shot or flechette darts. They saw service in North West Europe, where six SP Bofors of 92nd (Loyals) Light Anti-Aircraft Regiment, Royal Artillery, landed with the British 3rd Infantry Division on Sword Beach on D-Day to protect the vital bridges over the Caen Canal and Orne River (Pegasus Bridge and Horsa Bridge), shooting down 17 German planes. The guns were deployed in the UK, Germany, Cyprus, the Middle East, and the Far East (there had been insufficient L60s available to equip the RAF Regiment's squadrons in the Far East during the war; these having to make do mostly with Hispano and Oerlikon guns). Bofors considered either updating the 40 mm, or alternately making a much more powerful 57 mm design. An airburst round above Taliban in a ditch or over a Somali pirate skiff, would do the job with one round. The new cannon saves space inside the vehicle, leaving more room for equipment and crew. [11] A major improvement was the addition of power operation to both twin and quadruple mounts. Medium calibre cannon ammunition. Germany also purchased a large number (200+) of Hungarian made Bofors guns. Leave your comments and thoughts below. [8] The Bofors served as the main armament for almost 20 years. eXact iMpact™ 40 mm Standard Range Sponge Round Model: 6325. Never use the 20 grain loading with lead shot! previous page. The Army also experimented with various self-propelled anti-aircraft systems based on various tank chassis. Peak production year was 1942 when British factories produced 5,025 and Canadian factories produced 1,311. This seemed to be the solution they needed, improving firing rates to an acceptable level, and the work on a prototype commenced soon after. Direct Impact® 40mm Adjustable Range Round, Marking Model: 6322-A. However, these plans did not come to fruition at the time, and the Bofors and Vulcans are still in service,[26] though the latest W- and upcoming J-model variants sport 30 mm Mk44 Bushmaster II autocannons instead. Shoots three 28 gauge wads simultaneously. Later in the campaign, SP Bofors were used extensively for ground shoots as well as in an anti-aircraft role. [7]. [2], The 40×51mm MV cartrdige was designed by Rheinmetall Denel Munitions for the US Special Operations Command (USSOCOM) after a 2008 requirement for enhanced range and lethality from hand-held 40 mm grenades. 40MM Gun Barrels, Mark 1, are used with all mechanisms. The RAF's 40mm Anti-Tank Gun. The 40L70G guns were also provided with muzzle velocity radars. The stainless steel powder cup with primer pocket will hold up to 20 grains of powder. NATO currently uses three standardized 40 mm grenade families: 40 mm low velocity (LV), 40 mm medium velocity (MV) and 40 mm high velocity (HV). machine gun vs. autocannon).All 20 mm cartridges have an outside projectile diameter and barrel bore diameter of 0.787 inches (20.0 mm). While the actual armor penetration of the 40 mm Bofors with APFSDS ammunition is higher, the added armor penetration does not allow engaging heavier armored targets: all three claibres can defeat current generation IFVs … It had on-mounting fire control, and was usually fitted with Radar Type 282 to provide target range information. This is a unique re-designed 40 MM casing with our new, patented, proven, high-performance lift-charge base … In United States Army service, the M19 Gun Motor Carriage was replaced by the M42 Duster, using the same turret but based on the chassis of the M41 Walker Bulldog tank. [11] After the war, the 3"/50 caliber gun Mark 27 twin mount began to replace the Bofors, because the "VT" proximity fuse would not fit a 40mm projectile, and the 40 mm weapon was considered inadequate against the emerging anti-ship missile threat. The barrel was shorter at 42 calibers long, with the effect of reducing the muzzle velocity to about 700 m/s (2,300 ft/s). Mark IX: Mark VII mount modified to electrical power, as the Mounting Mark IX, and in this form saw service in the. 40 CTAS: Un Ajax (Scout SV) (en) britannique armé d'un canon 40 CTAS. [48], VOG-25 is 103 mm (4.1 in) long, weighs 250 g (8.8 oz), and features a 48 g (1.7 oz) explosive charge. STAAG was ultimately too difficult to maintain in the harsh environment of a warship and was later replaced by the Mounting Mark V with the fire control equipment located remotely, the single Mark VII and ultimately, with the Sea Cat missile. Although the gun could be trained quickly, aiming accurately while doing so proved difficult. [24][25][4] Going against Swedish military tradition, the 40 mm high velocity cartridge currently lacks a specified indigenous designation in Swedish service. A mechanism that was strong enough to handle the stresses of moving the large round was too heavy to move quickly enough to fire rapidly. The 40mm ammunition family, intended for use in world famous Bofors L/70 design - based weapon systems, probably representatives today’s most versatile and leading ammunition type in field od medium calibre ammunition. Projectiles seems to be of Romanian origin based on available information. This proved to leave heavy zinc deposits in the barrel, and had to be abandoned. The 40 mm quadruple mount was developed by essentially mounting two twin mounts side by side. [25][4] Instead only the projectile types have designations. A newer development from Breda, the Fast Forty (essentially a DARDO gun mount with twin 40mm/L70 guns), has nearly doubled the rate of fire to 450 rpm (7.5 rounds per second) (2 × 450 in twin mount), normally equipped with a 736-round magazine and a dual feed mechanism for naval use. The rate of fire was increased to 240 rounds per minute[1] (4.0 rounds per second), similar to the German Flak 43. 105mm C76A1 KE; 105mm M456A2 HEAT-T; 105mm M490 TP-T ; 105mm M724A2 TPDS-T; 120mm IM HE-T™ 120mm KE-W A1® 120mm M1002 TPMP-T; 120mm M1028 Canister; 120mm M865 TPCSDS-T; Close; Artillery. [9] The A1 has a different fuze from the regular M397.[10]. WW2 INERT German 1944 Dated 20 mm MK151/20 (20x82) HET (High Explosive Tracer) Cannon Round. In return, Hungary received 75 mm PAK guns for every 4-5 Bofors. The cannon will be used on the AC-130W and the AC-130J gunships. Defense … Initially it had three STAAG CIWS, the STAAG in Q position was removed in 1960, but it carried two mounts until the end of its service in South East Asian waters, in 1965. The only known submarines that used this arrangement was the Sjölejonet-class boats. Label. Mark IV: a tri-axially stabilized twin mounting copied from, and usually known as, the "Hazemeyer". 40MM Tri-Barrel Cannon Round. In most engagements only the pancake sights were used, without any form of correction, making the British versions less capable than those used by other forces. The prototype was completed and fired in November 1931, and by the middle of the month it was firing strings of two and three rounds. L/60 is an autocannon using 40x311mmR ammunition. 155mm M107 HE; 155mm M795 HE; 155mm M549A1 HE-RAP; 155mm MR103 Artillery … [2] It has a maximum range of 800 meters, exceeding conventional extended range low-velocity variants by up to 375 meters. "New Tools For Army Power", October 1941, 40 mm Automatic Gun M1 (AA) and 40 mm Antiaircraft Gun Carriages M2 and M2A1 TM 9-252, 40 MM Antiaircraft Gun, OP 820, 1943 : Navy Service Manual, Data and spec comparison of various marks of Bofors 40mm L/60, Data and Spec comparison of various marks of Bofors 40mm L/70, Rae, CJE, Harris, A.L. Chrysler engineers also tried to simplify the gun, unsuccessfully, and to take high speed movies to find possible improvements, but this was not possible until near the end of the war. [2][30] SANDF approved acquisition in February 2018 but deliveries could not be finished until the end of 2020 due to the COVID-19 pandemic.[30]. Bofors has been part of BAE Systems AB since March 2005. British production started slowly: by September 1939 only 233 equipments had been produced; but by the end of the war total production from British, Canadian and Australian factories was over 19,000. Bofors L/43 is a submarine variant of L/60 with retractable mounting, and using low propellant charge ammunition.[20][21][22]. [51] Unlike common caseless ammunition and their weapon systems the Metal Storm design lacked a feeding magazine and instead stacked the projectiles in front of each other in the barrel with the propellant in between the projectiles. In this online version of the manual we have attempted to keep the flavor of the original layout while taking advantage of the Web's universal accessibility. Check out 40mm Cannon Fires a Single Round by Sound Effects on Amazon Music. In the Army, each Anti-Aircraft Artillery (AAA) auto-weapons battalion was authorized a total of thirty-two 40 mm guns in its four firing batteries. Production was originally handled by the arms factory Uzina Mecanica Filiasi, however production was later moved to the arms factory Uzina Mecanica Tohan Zărnești,[26] today more commonly known as S. Tohan S.A.,[47] a subsidiary of ROMARM. The 40mm BIP Collapsible Gel Round will be on display at the 2017 International Association of Chiefs of Police Conference (IACP), in Philadelphia, Pennsylvania, October 21-24, booth #1515. [33] Rheinmetall answered by developing a new family of 40 mm grenades named 40 mm medium velocity[33] and by 2019 the cartridge was undergoing NATO qualification. There was also an L/43 submarine gun fitted in a retractable mounting. The brown lacquered steel cartridge case … As of August 2006, the French navy uses L/60s on more than twenty ships (patrols and auxiliaries). Currently these projectile types can be found in Swedish service manuals.[4]. READ NOW. Mark VI: a six-barreled weapon feeding from large trays instead of clips and designed for remote control from a dedicated radar-equipped director. This was a simplified, unstabilised mounting based on the American twin mounting Mark I, and was designed for remote fire control. The M42 Duster was built around a twin Bofors 40mm gun. The round is engineered with three firing modes: airburst; point detonation; and self-destruct. [45][25][4] Going against Swedish military tradition, the 40 mm high velocity cartridge currently lacks a specified indigenous designation in Swedish service. The 40mm Bofors L/60 is an autocannon produced primarily during the Second World War and used in at least some capacity by all major powers on both sides, primarily serving as an anti-aircraft gun. 83 grenade launcher (standalone variant fitted with standard pistol grip and folding stock from the AKMS assault rifle). The Swedish Navy purchased a number of 2 pounder Pom-Poms from Vickers as anti-aircraft guns in 1922. In the post-war era, the original design was not suitable for action against jet-powered aircraft, so Bofors introduced a new model of significantly more power, the 40 mm L/70. In order to supply both the U.S. Army and U.S. Navy with much greater numbers of the guns, Chrysler built 60,000 of the guns and 120,000 barrels through the war,[1] at half the original projected cost, and filling the Army's needs by 1943. When not in use, the gun was pointed directly up and retracted into a watertight cylinder. 30mm x 173 MK44 Cannon Ammunition Suite; 40mm M1001 HVCC; Close; Large Caliber. An undetonated round may explode when stepped on or driven over. The new cannon fires 40mm Cased Telescoped ammunition, manufactured for the British Army by BAE Systems’ munitions factories in Washington, Tyne and Wear and Glascoed in Wales.