The loaded .338 cartridge is eight.six mm (0.34 in) in diameter (rim) and 93.five mm (3.sixty eight in) lengthy. It can penetrate superior-than-normal military overall body armor at ranges of around one,000 metres (one,090 yd), and has a highest effective choice of about one,750 metres (1,910 yd) with C.I.P. conforming ammunition at sea stage conditions. Muzzle velocity is dependent on barrel size, seating depth, and powder demand, and varies from 880 to 915 m/s (2,890 to three,000 ft/s) for professional loads with 16.2-gram (250 gr) bullets, which corresponds to about six,525 J (four,813 ft⋅lbf) of muzzle Power.
British navy issue overpressure .338 Lapua Magnum cartridges with 70 mm (2.8 in) Total duration, loaded with sixteen.two-gram (250 gr) LockBase B408 extremely-very low-drag bullets fired at 936 m/s (three,071 ft/s) muzzle velocity from the L115A3 Long Assortment Rifle ended up Employed in November 2009 by British sniper Corporal of Horse (CoH) Craig Harrison to determine a brand new file for here that longest verified sniper get rid of in beat, at a range of two,475 m (two,707 yd) (because broken).[four] In reports, CoH Harrison mentions the environmental circumstances at Musa Qala had been perfect for extended-assortment capturing: no wind, gentle climate, and very clear visibility.
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