The loaded .338 cartridge is eight.6 mm (0.34 in) in diameter (rim) and ninety three.5 mm (three.68 in) very long. It might penetrate much better-than-conventional navy physique armor at ranges of nearly 1,000 metres (one,090 yd), and it has a highest effective choice of about 1,750 metres (1,910 yd) with C.I.P. conforming ammunition at sea stage circumstances. Muzzle velocity is depending on barrel duration, seating depth, and powder charge, and differs from 880 to 915 m/s (two,890 to three,000 ft/s) for industrial masses with sixteen.two-gram (250 gr) bullets, which corresponds to about 6,525 J (4,813 ft⋅lbf) of muzzle Electricity.
British army challenge overpressure .338 Lapua Magnum cartridges with 70 mm (two.eight in) General 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 Prolonged Range Rifle had been Utilized more info in November 2009 by British sniper Corporal of Horse (CoH) Craig Harrison to ascertain a completely new record for your longest confirmed sniper destroy in overcome, at A selection of two,475 m (2,707 yd) (due to the fact damaged).[4] In studies, CoH Harrison mentions the environmental ailments at Musa Qala were being great for long-range shooting: no wind, moderate temperature, and clear visibility.
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