The loaded .338 cartridge is 8.six mm (0.34 in) in diameter (rim) and ninety three.5 mm (3.sixty eight in) extensive. It may possibly penetrate improved-than-conventional armed service overall body armor at ranges of as many as 1,000 metres (1,090 yd), and it has a greatest powerful array of about 1,750 metres (one,910 yd) with C.I.P. conforming ammunition at sea stage situations. Muzzle velocity is dependent here on barrel duration, seating depth, and powder cost, and varies from 880 to 915 m/s (two,890 to 3,000 ft/s) for commercial masses with 16.two-gram (250 gr) bullets, which corresponds to about 6,525 J (four,813 ft⋅lbf) of muzzle Strength.
British armed forces problem overpressure .338 Lapua Magnum cartridges with 70 mm (two.8 in) overall duration, loaded with 16.two-gram (250 gr) LockBase B408 really-reduced-drag bullets fired at 936 m/s (three,071 ft/s) muzzle velocity from a L115A3 Long Selection Rifle had been Employed in November 2009 by British sniper Corporal of Horse (CoH) Craig Harrison to ascertain a brand new history to the longest verified sniper eliminate in combat, at A selection of 2,475 m (two,707 yd) (because damaged).[4] In stories, CoH Harrison mentions the environmental circumstances at Musa Qala were being perfect for very long-assortment taking pictures: no wind, gentle temperature, and distinct visibility.
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