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The M2 ball specifications required 2,740 feet per second (835.2 m/s) minimum velocity, measured 78 feet (24 m) from the muzzle. [23] M2 ball was the standard-issue ammunition for military rifles and machine guns until it was replaced by the 7.62×51mm NATO round in 1954.
T1IDP = 210 cartridges .50 linked (4 × AP M2, 1 × TR M1), 105 linked rounds in metal M2 ammo box, 2 × M2 ammo boxes per wooden crate. Volume: 0.93 Cubic Feet. T1IDS = 110 cartridges .50 linked (2 × AP-I M8, 2 × INC M1, 1 TR M10), 55 linked rounds in metal M10 ammo can, 2 × M10 ammo cans per M12 wooden crate.
The M2 has varying cyclic rates of fire, depending on the model. The M2HB air-cooled ground gun has a cyclical rate of 450–575 rounds per minute. [30] The early M2 water-cooled AA guns had a cyclical rate of around 450–600 rpm. [31] The AN/M2 aircraft gun has a cyclic rate of 750–850 rpm; this increases to 1,200 rpm for AN/M3 aircraft guns.
Early ammunition had a 4-digit year with the first 2 digits (thousands and hundreds) at 9 o'clock and the second 2 digits (tens and ones) at 3 o'clock. Ammunition with an E at the 12 o'clock position (which stands for Ersättning, or "Substitute") have a bimetallic cartridge-case (brass-clad steel) due to wartime economy measures during World ...
The M2 and M9 links, "pull-out" designs, are used in the Browning M2 and M3 machine guns. [ 32 ] [ 33 ] The M15-series metal "push-through" links were used in the M85 machine gun . Pull-out cloth belts were also used at one time but have been obsolete since 1945.
] The cannon carries 300 rounds of ammunition in two ready boxes (one of 70 rounds, the other of 230 rounds), with an extra 600 rounds in storage for the M2 Infantry Fighting Vehicle variant or 1,200 stowed rounds for the M3 Cavalry Fighting Vehicle variant. The two ready-boxes allow a selectable mix of rounds, such as the M791 APDS-T (Armor ...
The breech ring of the howitzer M2 was modified in March 1940 before large-scale production began, creating the 105 mm howitzer M2A1 on carriage M2. [ 1 ] In 1939, the new howitzer cost $25,000, which was three times more than a 75 mm field gun M1897 on M2 carriage , and its adoption required procurement of a colossal amount of new ammunition ...
The Browning automatic rifle (BAR) is a family of American automatic rifles and machine guns used by the United States and numerous other countries during the 20th century. . The primary variant of the BAR series was the M1918, chambered for the .30-06 Springfield rifle cartridge and designed by John Browning in 1917 for the American Expeditionary Forces in Europe as a replacement for the ...