The loaded .338 cartridge is eight.six mm (0.34 in) in diameter (rim) and 93.5 mm (three.sixty eight in) prolonged. It could possibly penetrate superior-than-common navy human body armor at ranges of around 1,000 metres (one,090 yd), and it has a highest efficient selection of about one,750 metres (one,910 yd) with C.I.P. conforming ammunition at sea degree conditions. Muzzle velocity is depending on barrel size, seating depth, and powder charge, and may differ from 880 to 915 m/s (2,890 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 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 quite-reduced-drag bullets fired at 936 m/s (three,071 ft/s) muzzle velocity from a L115A3 Long Array Rifle have been Employed in read more November 2009 by British sniper Corporal of Horse (CoH) Craig Harrison to ascertain a brand new history to the longest confirmed sniper eliminate in combat, at A selection of 2,475 m (two,707 yd) (considering that broken).[four] In reports, CoH Harrison mentions the environmental ailments at Musa Qala had been great for lengthy-vary shooting: no wind, moderate weather, and crystal clear visibility.
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