Winchester 762 x 51 mm

The .308 Winchester round was introduced in 1952. It is used in medium and heavy machine guns. Military bullets are full metal-jacketed and usually weigh 150 gr. Civilian rounds are loaded with 110-, 125-, 150-, 180-, and 200-gr. hunting bullets. In ballistic performance it is approximately equal to the .30-06 cartridge. Muzzle velocities range from 3180 to 2450 ft/sec. The standard military round is the M-80. It has a 150 gr. (9.72 g) bullet with a muzzle velocity of 2750 ft/s (838 m/s) and muzzle energy of 2520 ft-lbs (3276 J).

This rimmed cartridge was introduced in the Russian M1891 Mosin-Nagent rifle. Rifles chambered for this cartridge are almost all of Russian or former Soviet-bloc manufacture. This cartridge is comparable in performance to the .30-06. A typical loading would be a 150 gr. bullet with a muzzle velocity of 2850 ft/s.

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