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The ArmaLite AR-15 [note 3] is a gas-operated assault rifle manufactured in the United States between 1959 and 1964. [10] Designed by American gun manufacturer ArmaLite in 1956, it was based on its AR-10 rifle.
AR-15–style rifles are now available in a wide range of configurations and calibers from a large number of manufacturers. These configurations range from standard full-sizes rifles with 20-inch (51 cm) barrels, to short carbine-length models with 16-inch (41 cm) barrels, adjustable length stocks and optical sights, to long range target models ...
At closer ranges (typically inside 15–20 meters), the shooter must compensate by aiming high to place shots where desired. The standard AR-15 rifle has a 500 mm (19.69-inch) sight radius. [ 15 ] The AR-15 uses an L-type flip, aperture rear sight and it is adjustable with two settings, 0 to 300 meters and 300 to 400 meters. [ 16 ]
Initially all Colt civilian weapons were listed with an “R” prefix, with this changing to “AR” following the passage of the Federal Assault Weapons Ban in 1994. Colt also produced a line of weapons aimed at target shooters under the “MT” prefix, which stood for Match Target, as well as, the Colt Accurized Rifle, which was the only ...
Other cartridges were derived from re-forming an existing case and possibly trimming the length in order to arrive at a case-shape that meets the standardized SAAMI-spec dimensions. AR-15 : 22 Nosler , Proprietary, uses the head and rim dimensions of the 5.56x45, and a case-body that is similar to the 6.8 SPC case.
1,034,462 of the Model 760 alone were made from 1952-1980: Vetterli M1870: Bolt-action rifle Italy: 1,500,000 Remington Rolling Block: Single-shot rifle United States: 1,500,000 [121] Pattern 1853 Enfield: Rifle-musket United Kingdom: 1,500,000 [122] [page needed] MP 38 and MP 40: Submachine gun Nazi Germany: 1,100,000 [123] 1,500,000 [123 ...
They were used for several centuries by field and naval gunners of all countries until gradually replaced by computerised fire-control systems beginning in World War II (1939–1945). Range table for US 3-inch (76.2 mm) field gun, models 1902-1905
When fired from a 20 in (510 mm) barrel at ranges of up to 300 feet (100 m), the thin-jacketed lead-cored round traveled fast enough (above 2,900 ft/s (880 m/s)) that the force of striking a human body would cause the round to yaw (or tumble) and fragment into about a dozen pieces of various sizes thus created wounds that were out of proportion ...