The .338 Lapua Magnum (eight.6×70 mm or eight.fifty eight×70 mm) is a rimless, bottlenecked, centerfire rifle cartridge. It was produced over the nineteen eighties as a higher-powered, lengthy-assortment cartridge for armed forces snipers. Resulting from its use from the War in Afghanistan plus the Iraq War, the cartridge has grown to be commonly readily available.
The loaded .338 cartridge is eight.6 mm (0.34 in) in diameter (rim) and 93.five mm (three.sixty eight 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 maximum 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 challenge overpressure .338 Lapua Magnum cartridges with 70 mm (2.eight in) Total length, loaded with sixteen.2-gram (250 gr) LockBase B408 get more info pretty-very low-drag bullets fired at 936 m/s (3,071 ft/s) muzzle velocity from the L115A3 Extended Range Rifle ended up 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 beat, at A selection of two,475 m (2,707 yd) (since broken).[four] In studies, CoH Harrison mentions the environmental conditions at Musa Qala have been perfect for prolonged-range capturing: no wind, mild climate, and apparent visibility.
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