The loaded .338 cartridge is 8.six mm (0.34 in) in diameter (rim) and 93.five mm (3.68 in) lengthy. It may possibly penetrate superior-than-common army system armor at ranges of approximately one,000 metres (1,090 yd), and it has a highest effective choice of about one,750 metres (1,910 yd) with C.I.P. conforming ammunition at sea amount situations. Muzzle velocity is depending on barrel length, seating depth, and powder cost, and may differ from 880 to 915 m/s (2,890 to 3,000 ft/s) for professional loads with sixteen.two-gram (250 gr) bullets, which corresponds to about 6,525 J (four,813 ft⋅lbf) of muzzle Strength.
British military services concern overpressure .338 Lapua Magnum cartridges with 70 mm (two.eight in) General size, loaded with sixteen.two-gram (250 gr) LockBase B408 very-lower-drag bullets fired at 936 m/s (three,071 ft/s) muzzle velocity from a L115A3 Prolonged Range Rifle had click here been Employed in November 2009 by British sniper Corporal of Horse (CoH) Craig Harrison to establish a whole new report for your longest confirmed sniper eliminate in battle, at An array of two,475 m (two,707 yd) (since broken).[four] In reports, CoH Harrison mentions the environmental situations at Musa Qala have been ideal for prolonged-array taking pictures: no wind, moderate temperature, and apparent visibility.
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