The loaded .338 cartridge is 8.six mm (0.34 in) in diameter (rim) and ninety three.five mm (3.68 in) extensive. It may possibly penetrate improved-than-conventional armed service overall body armor at ranges of approximately 1,000 metres (one,090 yd), and it has a greatest successful selection of about one,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 charge, and may differ from 880 to 915 m/s (2,890 338 Lapua Ammo to 3,000 ft/s) for professional masses with 16.two-gram (250 gr) bullets, which corresponds to about 6,525 J (four,813 ft⋅lbf) of muzzle Strength.
British military challenge overpressure .338 Lapua Magnum cartridges with 70 mm (2.eight in) Over-all length, loaded with sixteen.2-gram (250 gr) LockBase B408 very-very low-drag bullets fired at 936 m/s (3,071 ft/s) muzzle velocity from the L115A3 Prolonged Variety Rifle were being Utilized in November 2009 by British sniper Corporal of Horse (CoH) Craig Harrison to establish a different document with the longest confirmed sniper get rid of in overcome, at a range of two,475 m (two,707 yd) (considering that broken).[four] In reports, CoH Harrison mentions the environmental ailments at Musa Qala had been ideal for long-array shooting: no wind, delicate weather, and obvious visibility.
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