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The .338 Lapua Magnum (8.6×70mm or 8.58×70mm) is a Finnish rimless, bottlenecked, centerfire rifle cartridge.It was developed during the 1980s as a high-powered, long-range cartridge for military snipers.
The Barrett Model 98B (also known as the Barrett Model 98 Bravo) is a bolt-action sniper rifle chambered in .338 Lapua Magnum (8.6×70mm or 8.58×70mm) and manufactured by Barrett Firearms Manufacturing. The Model 98B was officially announced in October 2008, and became available for sale in early 2009, with an MSRP of $4,495.00. [1]
Barrel changes by an experienced person can take place in under 60 seconds. The Tactical 1 (very low production) or 2 version is available in .223 Remington , .308 Winchester , .300 Winchester Magnum and .338 Lapua Magnum and has a larger frame, action and barrel to accommodate the use of the .338 Lapua Magnum chambering.
In September 2016, the company began selling the M1400, a squad-level .338 Lapua bolt-action rifle that can hit targets out to 1,400 yards (1,280 m). It can also acquire and hit targets traveling at 20 mph (32 km/h) within 2.5 seconds. The rifle is 45 in (110 cm) long with a 22 in (560 mm) barrel, weighing 15.4 lb (7.0 kg).
To address .338 Lapua Magnum ammunition length limitations of the AWM, Accuracy International has since developed the AX338 long range rifle as the AWM successor model. The bolt action of the AX338 is longer and wider than the AWM, and the internal magazine is lengthened, allowing the unimpaired use of .338 Lapua Magnum cartridges loaded to the ...
The 338 Lapua Magnum barrels are supplied with a 254 mm (1 in 10 inch) twist rate optimized to stabilize long, heavy very-low-drag bullets like the Sierra HPBT MatchKing and Lapua Scenar .338-calibre 19.44 gram (300 grain) bullets.
Barrel/caliber change can occur in less than two minutes. In addition to the typical military requested calibers of .338 Lapua Magnum, .300 Winchester Magnum, and .308 Winchester calibers, Barrett also offers caliber conversion kits in .338 and .300 Norma Magnum, 7mm Remington Magnum, .260 Remington, and 6.5mm Creedmoor.
The upper receiver is enlarged and combined with a 560 mm (22.0 in) barrel and a different muzzle brake. The bolt group of this model is also modified to accommodate the dimensionally significantly larger cartridge. The total weight and length of this .338 Lapua Magnum variant are 6.3 kg (14 lb) and 1,015 mm (40.0 in).