The loaded .338 cartridge is eight.6 mm (0.34 in) in diameter (rim) and 93.five mm (three.68 in) extended. It may penetrate far better-than-normal army physique armor at ranges of up to one,000 metres (1,090 yd), and has a most helpful choice of about 1,750 metres (1,910 yd) with C.I.P. conforming ammunition at sea amount ailments. Muzzle velocity is dependent on barrel length, seating depth, and powder demand, and differs from 880 to 915 m/s (two,890 to three,000 ft/s) for industrial hundreds with sixteen.2-gram (250 gr) bullets, which corresponds to about six,525 J (4,813 ft⋅lbf) of muzzle energy.
British military services situation overpressure .338 Lapua Magnum cartridges with 70 mm (2.eight in) All round here length, loaded with sixteen.two-gram (250 gr) LockBase B408 really-reduced-drag bullets fired at 936 m/s (three,071 ft/s) muzzle velocity from a L115A3 Extensive Array 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 destroy in combat, at A selection of 2,475 m (2,707 yd) (since damaged).[four] In studies, CoH Harrison mentions the environmental conditions at Musa Qala ended up perfect for prolonged-range capturing: no wind, mild climate, and clear visibility.
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