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Barrel length helps determine a specific cartridge's muzzle velocity. A longer barrel typically yields a greater muzzle velocity, while a shorter barrel yields a lower one. The first AR-15 rifles used a barrel length of 20". In the case of the 223 Remington (M193), ammunition loses or gains about 25.7 ft/sec (7.8 m/s) for each inch of barrel ...
The AR-15 rifle usually comes chambered for either the military cartridge 5.56×45mm or the .223 Remington. Because of the pressures associated with the 5.56×45mm, it is not advisable to fire 5.56×45mm rounds in an AR-15 marked as .223 Remington, since this can result in damage to the rifle or injury to the shooter. [ 1 ]
*Of which a length of 10.16 mm of the shank has its diameter reduced to 20.45 mm: 17/20"-12 Remington Rolling Block No. 1-1/2 Rem., Sporting Action [6]: 33 Sq21.59: 2.117 mm 90° 36.65 mm* Square threads. Also written as 0.850"-12. *Of which a length of 12.70 mm of the shank has its diameter reduced to 20.32 mm: 17/20"-12
A guide to the recoil from the cartridge, and an indicator of bullet penetration potential. The .30-06 Springfield (at 2.064 lbf-s) is considered the upper limit for tolerable recoil for inexperienced rifle shooters. [2] Chg: Propellant charge, in grains; Dia: Bullet diameter, in inches; BC: Ballistic coefficient, G1 model; L: Case length (mm)
The .350 Legend shares many characteristics with the .223 Remington, such as an overall cartridge length of 2.26 inches (57 mm) and a rim diameter of .378 inches (9.6 mm). [3] [4] Because of its similarities to the .223 Remington and 5.56 mm NATO, the .350 Legend is suitable for use in AR-15 type semiautomatic rifles. [1] [4]
From left: .222 Remington, .223 Remington and .222 Remington Magnum. The .222 Remington Magnum was created by lengthening the case and shortening the neck of the highly accurate and very popular .222 Remington cartridge, which dominated varmint and benchrest shooting during the 1950s. Case capacity is about 20% greater than that of the .222 ...
The .223 WSSM was introduced in 2003 by the Browning Arms Company, Winchester Ammunition, and Winchester Repeating Arms Company. The .223 designation is a reference to the popular .223 Remington. It is currently the fastest production .22 caliber round in the world with muzzle velocities as high as 4,600 feet per second (1,402 meters per second).
Bushmaster also produces the Patrolman's Carbine variant which features the more common removable "bird cage" flash suppressor, attached to a 16 in (410 mm) barrel, bringing the total barrel length to 17.5 in (440 mm). Both of these comply with current U.S. federal law which states a minimum 16 in (410 mm) barrel for a rifle. There is also a ...