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Cartridge, 20 mm, high pressure test, Mk 101 Mod 0 (USN) Not to exceed 72,500: 1700: Inert: Not listed: Green or blue projectile with brown nose and 1/4 black letters reading "High pressure test round" Cartridge, 20 mm, low pressure test, Mk 102 Mod 0 (USN) Not listed: 1700: Inert: Not listed
20 mm caliber is a specific size of popular autocannon ammunition. The dividing line between smaller-caliber weapons, commonly called "guns", from larger-caliber "cannons" (e.g. machine gun vs. autocannon), is conventionally taken to be the 20 mm round, the smallest caliber of autocannon.
The basic design was based on the original Oerlikon 20 mm cannon, in turn based on the German Empire's Becker 20 mm cannon of World War I. In the post-war period, Oerlikon had developed the original design to produce three autocannons with increasingly powerful rounds; the original model, later known as the "F", used the Becker 20x70mm round ...
The Hispano fired a 130 grams (4.586 oz) 20 mm diameter projectile from a 110 mm (4.331 in) long casing, the whole round weighing 257 g (9.065 oz). [19] Lengths of the projectiles varied with type but were set to variable depth in the casing to produce a total full round length of 184 mm (7.244 in) regardless of projectile type. [ 20 ]
The NTW-20 is a South African anti-materiel rifle, developed by Denel Mechem in the 1990s.It is intended for deployment against targets including parked aircraft, telecommunication masts, power lines, missile sites, radar installations, refineries, satellite dishes, gun emplacements, bunkers, and personnel, using a range of specialised projectiles.
The Oerlikon 20 mm cannon is a series of autocannons based on an original German Becker Type M2 20 mm cannon design that appeared very early in World War I. It was widely produced by Oerlikon Contraves and others, with various models employed by both Allied and Axis forces during World War II. Many versions of the cannon are still used. [2] [3]
The 81 mm mortar shells used an adapter collar to allow 60 mm mortar shell fuzes to fit. Originally packed in wooden crates, the late war shells (1944–1945) were packed in metal M140 canisters. The M140 canister carried live shells in a four-chambered internal divider, had a horsehair pad in the inside of the lid to cushion the fuzes, and had ...
The M39 cannon with its 20 mm ammunition chute. The M39 cannon is a 20 mm caliber single-barreled revolver cannon developed for the United States Air Force in the late 1940s. It was used on a number of fighter aircraft from the early 1950s through the 1980s.