The loaded .338 cartridge is eight.6 mm (0.34 in) in diameter (rim) and ninety three.5 mm (three.sixty eight in) prolonged. It may penetrate better-than-typical armed forces body armor at ranges of as many as 1,000 metres (1,090 yd), and it has a optimum helpful variety of about one,750 metres (1,910 yd) with C.I.P. conforming ammunition at sea degree disorders. Muzzle velocity is dependent on barrel size, seating depth, and powder demand, and varies from 880 to 915 m/s (2,890 to three,000 ft/s) for commercial loads with 16.two-gram (250 gr) bullets, which corresponds to about six,525 J (four,813 ft⋅lbf) of muzzle Electrical power.
British armed forces challenge overpressure .338 Lapua Magnum cartridges with 70 mm (two.eight in) overall length, loaded with 16.2-gram (250 gr) LockBase B408 really-very low-drag bullets fired at 936 m/s (three,071 ft/s) muzzle velocity from the L115A3 Extensive Range Rifle had been used in November 2009 by British sniper Corporal of Horse (CoH) Craig Harrison to ascertain a whole new report with the longest verified sniper get rid of in beat, check here at An array of two,475 m (two,707 yd) (due to the fact damaged).[4] In studies, CoH Harrison mentions the environmental problems at Musa Qala have been ideal for extended-assortment shooting: no wind, mild weather, and clear visibility.
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