The loaded .338 cartridge is eight.6 mm (0.34 in) in diameter (rim) and ninety three.five mm (3.sixty eight in) extended. It can penetrate improved-than-normal military overall body armor at ranges of around one,000 metres (one,090 yd), and has a utmost successful number of about 1,750 metres (1,910 yd) with C.I.P. conforming ammunition at sea amount 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 commercial masses with sixteen.two-gram (250 gr) bullets, which corresponds to about six,525 J (4,813 ft⋅lbf) of muzzle Strength.
British military situation overpressure .338 Lapua Magnum cartridges with 70 mm (two.eight in) overall length, loaded with 16.2-gram (250 gr) LockBase B408 incredibly-low-drag bullets fired at 936 m/s (3,071 ft/s) muzzle velocity from a L115A3 Prolonged Vary Rifle had been Utilized 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).[four] In stories, CoH Harrison mentions the environmental disorders at Musa Qala were perfect for lengthy-variety shooting: no wind, get more info mild weather, and distinct visibility.
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