The loaded .338 cartridge is eight.6 mm (0.34 in) in diameter (rim) and 93.5 mm (three.sixty eight in) prolonged. It might penetrate greater-than-normal armed forces physique armor at ranges of as much as one,000 metres (one,090 yd), and has a maximum effective number of about one,750 metres (1,910 yd) with C.I.P. conforming ammunition at sea level disorders. Muzzle velocity is depending on barrel length, seating depth, and powder demand, and differs from 880 to 915 m/s (2,890 to three,000 ft/s) for industrial loads with sixteen.2-gram (250 gr) bullets, which corresponds to about six,525 J (4,813 ft⋅lbf) of muzzle Power.
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 Savage 338 Lapua B408 pretty-very low-drag bullets fired at 936 m/s (3,071 ft/s) muzzle velocity from the L115A3 Extended Range Rifle ended up Utilized in November 2009 by British sniper Corporal of Horse (CoH) Craig Harrison to establish a different file for the longest verified sniper kill in battle, at a range of two,475 m (2,707 yd) (due to the fact broken).[four] In reports, CoH Harrison mentions the environmental ailments at Musa Qala had been great for lengthy-array shooting: no wind, delicate weather, and obvious visibility.
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