The loaded .338 cartridge is 8.six mm (0.34 in) in diameter (rim) and ninety three.five mm (3.sixty eight in) extensive. It may possibly penetrate improved-than-typical armed service overall body armor at ranges of approximately 1,000 metres (one,090 yd), and it has a greatest successful array of about 1,750 metres (one,910 yd) with C.I.P. conforming ammunition at sea degree circumstances. Muzzle velocity is depending on barrel size, seating depth, and powder cost, and varies from 880 to 915 m/s (two,890 to 3,000 ft/s) for professional masses with 16.two-gram (250 gr) bullets, which corresponds to about 6,525 J (4,813 ft⋅lbf) of muzzle Electricity.
British navy concern overpressure .338 Lapua Magnum cartridges with 70 mm (two.8 in) General duration, loaded with 16.two-gram (250 gr) LockBase B408 quite-minimal-drag bullets check here fired at 936 m/s (three,071 ft/s) muzzle velocity from a L115A3 Long Vary Rifle have been used in November 2009 by British sniper Corporal of Horse (CoH) Craig Harrison to ascertain a fresh history for that longest confirmed sniper eliminate in fight, at An array of two,475 m (2,707 yd) (since damaged).[four] In studies, CoH Harrison mentions the environmental conditions at Musa Qala ended up perfect for prolonged-variety capturing: no wind, mild weather conditions, and clear visibility.
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