.300 Winchester Magnum

Rare card · No. 60403

The .300 Winchester Magnum (also known as .300 Win Mag or .300 WM) (7.62×67mmB, 7.62×66BR) 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. It is based on the .375 H&H Magnum, which has been blown out, shortened, and necked down to accept a .30 caliber (7.62 mm) bullet. The .300 Win Mag is extremely versatile and has been adopted by a wide range of users, including big game hunters, target shooters, military units, and law enforcement departments. Many hunters have found the cartridge to be an effective all-around choice, with bullet options ranging from the flatter-shooting 150-grain to the harder-hitting 200+ grain selections available in factory ammunition. The .300 Win Mag remains the most popular .30-caliber magnum among American hunters, despite faster and more powerful .300 Magnums options such as the .300 Weatherby Magnum...

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