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The .300 Winchester Magnum (also known as .300 Win Mag or .300 WM) (7.62×67mmB, 7.62x66BR) is a belted, bottlenecked magnum rifle cartridge that was introduced by the Winchester Repeating Arms Company in 1963. The .300 Winchester Magnum is a magnum cartridge designed to fit in a standard rifle action.
Little is known of its usage or technical data, and pictures are seldom available. The pictures that have been released show a Remington 700 Long-Action receiver mated to a McMillan A2 stock. The rifle was chambered in .300 Winchester Magnum. The rifle was the most prolific sniper weapon in the Navy until the advent of the Mk 13 Mod 5.
The .300 WSM also head-spaces off of the case shoulder, versus the older .300 Winchester Magnum's belted head space design. The advantage to this round is the ballistic performance is nearly identical to the .300 Winchester Magnum [ 2 ] in a lighter rifle with a shorter action burning 8 - 10% less gunpowder.
This was acceptable for shooting at materiel but not people. The XM2010 addressed the problem with a .300 Winchester Magnum round that can hit targets out to 1,200 m (1,312 yd) with a 1 MOA accuracy, half again farther than the M24's 800 m (875 yd). On 20 September 2010, the Army gave Remington a $28 million contract to rebuild 3,600 M24 rifles.
The rifle was chambered for the .308 Winchester cartridge as well as the .223 Remington, .243 Winchester, 7mm Remington Magnum, .300 Winchester Magnum, .300 Remington Ultra Magnum, and .338 Lapua Magnum. The 700P has a 26" barrel, and aluminum block bedding in its stock, which is made by HS Precision. The 700P is also marketed to the public.
Aggregate of articles pertaining to .300 Winchester Magnum firearms. Pages in category ".300 Winchester Magnum firearms" The following 6 pages are in this category, out of 6 total.
Due to the gaining popularity of the 7mm Rem Mag, in 1963 Winchester launches the last member of the Winchester Magnum family of cartridges; the .300 Winchester Magnum; a standard length action belted magnum driving a 180 grain bullet at 3000 fps and a 150 grain bullet at a muzzle velocity of 3300 fps. The cartridge took off slowly but managed ...
The Magnum Rifle was originally offered in .264 Winchester Magnum, and .300 Winchester Magnum. [6] In 1967 the 7 mm Remington Magnum was added to the available chamberings. In 1969 the 7mm Remington Magnum was dropped from production. In 1970 the Magnum Rifle was dropped from the Model 670 lineup entirely.