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 improved-than-regular army physique armor at ranges of up to 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 conditions. Muzzle click here velocity is depending on barrel size, seating depth, and powder charge, and may differ from 880 to 915 m/s (two,890 to 3,000 ft/s) for commercial loads with sixteen.2-gram (250 gr) bullets, which corresponds to about six,525 J (4,813 ft⋅lbf) of muzzle Electrical power.
British military issue overpressure .338 Lapua Magnum cartridges with 70 mm (2.eight in) Total size, loaded with sixteen.two-gram (250 gr) LockBase B408 pretty-reduced-drag bullets fired at 936 m/s (3,071 ft/s) muzzle velocity from a L115A3 Lengthy Selection Rifle were being used in November 2009 by British sniper Corporal of Horse (CoH) Craig Harrison to establish a brand new document to the longest verified sniper kill in fight, at a range of 2,475 m (two,707 yd) (since damaged).[four] In stories, CoH Harrison mentions the environmental disorders at Musa Qala were being great for extensive-array capturing: no wind, gentle weather, and clear visibility.
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