The loaded .338 cartridge is eight.6 mm (0.34 in) in diameter (rim) and ninety three.five mm (3.sixty eight in) lengthy. It may possibly penetrate greater-than-standard armed service physique armor at ranges of as many as 1,000 metres (1,090 yd), and has a most successful choice of about 1,750 metres (1,910 yd) with C.I.P. conforming ammunition at sea degree disorders. Muzzle velocity is dependent on barrel length, seating depth, and powder cost, and differs from 880 to 915 m/s (two,890 to get more info three,000 ft/s) for commercial loads with 16.2-gram (250 gr) bullets, which corresponds to about 6,525 J (four,813 ft⋅lbf) of muzzle Electrical power.
British army situation overpressure .338 Lapua Magnum cartridges with 70 mm (two.eight in) In general duration, loaded with sixteen.two-gram (250 gr) LockBase B408 extremely-minimal-drag bullets fired at 936 m/s (3,071 ft/s) muzzle velocity from a L115A3 Prolonged Vary Rifle were being used in November 2009 by British sniper Corporal of Horse (CoH) Craig Harrison to establish a brand new file to the longest verified sniper eliminate in overcome, at A selection of 2,475 m (2,707 yd) (given that broken).[4] In reports, CoH Harrison mentions the environmental circumstances at Musa Qala were perfect for long-range taking pictures: no wind, moderate weather conditions, and crystal clear visibility.
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