One of the disadvantages of these old cartridge cases, which were intended for firing cordite charges instead of modern smokeless powder, is the thickness of the sidewall just forward of the web. 416 Rigby is an English big game cartridge designed in 1911 to accommodate 325 MPa (47,137 psi) pressures. 416 Rigby case necked down to take a 0.338-inch (8.6 mm) bullet was selected, since this diameter presents an optimum of sectional density and penetrating capability for practical spin-stabilized rifle bullets (bullets up to about 5 to 5.5 calibers in length). In 1983, Research Armament Industries (RAI) in the United States began development of a new, long-range sniper cartridge capable of firing a 16.2-gram (250 gr), 0.338-inch (8.6 mm) diameter bullet at 914 metres per second (3,000 ft/s), that could lethally penetrate five layers of military body armor at 1,000 m (1,094 yd). 4.2 Performance improvement experiments with non-C.I.P.-conforming cartridges.4 Supersonic range performance of the.338 Lapua Magnum is legal for hunting Africa's big five game if the loads have at least 5,400 J (3,983 ft⋅lbf) muzzle energy. 338 Lapua Magnum is capable of taking down any big game animal, though its suitability for some dangerous game (Cape buffalo, hippopotamus, white rhinoceros, and elephant) is arguable unless accompanied by a larger "backup" caliber: "There is a huge difference between calibers that will kill an elephant and those that can be relied upon to stop one." In Namibia, the. In addition to its military role, it is increasingly used by hunters and civilian long-range shooting enthusiasts. In reports, CoH Harrison mentions the environmental conditions at Musa Qala were perfect for long-range shooting: no wind, mild weather, and clear visibility. 338 Lapua Magnum cartridges with 91.4 mm (3.60 in) overall length, loaded with 16.2-gram (250 gr) LockBase B408 very-low-drag bullets fired at 936 m/s (3,071 ft/s) muzzle velocity fired from a L115A3 Long Range Rifle were used in November 2009 by British sniper Corporal of Horse (CoH) Craig Harrison to establish a new record for the longest confirmed sniper kill in combat, at a range of 2,475 m (2,707 yd) (since broken). Muzzle velocity is dependent on barrel length, seating depth, and powder charge, and varies from 880 to 915 m/s (2,890 to 3,000 ft/s) for commercial loads with 16.2-gram (250 gr) bullets, which corresponds to about 6,525 J (4,813 ft⋅lbf) of muzzle energy.īritish military issue overpressure. conforming ammunition at sea level conditions. It can penetrate better-than-standard military body armor at ranges of up to 1,000 metres (1,090 yd), and has a maximum effective range of about 1,750 metres (1,910 yd) with C.I.P. As a result of this, it has become widely available. It was used in the War in Afghanistan and the Iraq War.
It was developed during the 1980s as a high-powered, long-range cartridge for military snipers. 338 Lapua Magnum (8.6×70 mm or 8.58×70 mm) is a rimless, bottlenecked, centerfire rifle cartridge. Source(s): Vihta Vuori Powder N570 Lapua (690 mm 27.15 inches) barrel
Test barrel length: 690 mm (27.15 inches) Haenel Rs9 and R&S SX1 MTR
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