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The original patent filed by Hermann Gerlich in 1932 [6]. The squeeze bore concept was first patented by German inventor Carl Puff in 1903 [7] [8], even though the general principle was known already in 19th century and later applied in lighter fashion on Armstrong guns, on which only the muzzle yet not the barrel itself was of slightly smaller diameter (to cast off the sealing leather-bag ...
1994 - CTAI was created by (at that time) GIAT and Royal Ordnance, with initial activities around a 45mm solution 1997 - the 40mm calibre solution is selected; 1999 - The UK MoD Operational Analysis (OA) study output is shared with US DoD; the solution is integrated into Bradley Fighting Vehicle and the US-UK Tracer prototype vehicle
Light tank Mk VII Tetrarch Mk I with Littlejohn adaptor.. The Littlejohn adaptor was a device that could be added to the British QF 2 pounder (40 mm) anti-tank gun. It was used to extend the service life of the 2-pounder during the Second World War by converting it to squeeze bore operation.
The Bushmaster IV is a 40 mm chain-driven autocannon designed and built by Alliant Techsystems, based on the M242 Bushmaster, Bushmaster II and Bushmaster III. [1] [2] The Bushmaster IV fires 40×365mmR 3P (Prefragmented, Programmable, Proximity-fuzed), APFSDS-T Mk I, and APFSDS-T Mk II rounds. The 3P round will provide air burst capability and ...
[2] [1] Its development was inspired by the American Barrett XM109 anti-materiel rifle, which fires 25 × 59 mm grenades, [2] [1] and its design is based on the Chinese HSARI LR2 12.7 × 108 mm anti-material rifle. [8] QLU-11 utilizes a new Type 11 precision cartridge that is derived from the DFJ-87 armor-piercing grenade. The lighter casing ...
The 40 mm ammunition used (40×53 mm) is not interchangeable with that used in the M203 (40×46 mm). The M203 ammunition develops a lower chamber pressure, and resultant lower muzzle velocity and range, compared to ammunition loaded for the Mk 19. The Mk 19 fires from an open bolt. The rounds are mechanically fed onto the bolt face with the ...
The Milkor Stopper is a riot gun used for riot control, designed to fire a 37/38mm or 40mm cartridge, which can be a 9mm Buckshot, Rubber ball buckshot, teargas canister, rubber shot cartridge or explosive. The weapon is simple to operate and all metal surfaces are treated with a coating for corrosion protection, plus long-life dry film ...
The cannon is a larger and more modern version of the 35 mm Bushmaster III chain gun, which itself is a larger version of the 25 mm M242 Bushmaster cannon. Although its shells, 50 x 228 mm, are twice the diameter of the 25×137mm cartridge of the M242, the 50mm cannon is not much longer than the smaller weapon. [ 2 ]