300 Winchester Magnum

300 winchester magnum

300 winchester magnumor 300WM) (7.62×67mmB, 7.62x66BR) is a belted, bottlenecked magnum rifle cartridge that was introduced by 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  is extremely versatile and has been adopted by a wide range of users including hunters, target shooters, military units, and law enforcement departments. Hunters found the cartridge to be an effective all-around choice with bullet options ranging from the flatter shooting 165 grain to the harder hitting 200+ grain selections available from the factory. The .300 Win Mag remains the most popular .30 caliber magnum with American hunters, despite being surpassed in performance by the more powerful .300 and .30-378 Weatherby Magnums and the newer .300 Remington Ultra Magnum. It is a popular selection for hunting moose, elk, and bighorn sheep as it can deliver better long range performance with better bullet weight than most other .30 caliber cartridges. Military and law enforcement departments adopted the cartridge for long range sniping and marksmanship. As a testament to its accuracy, since its introduction it has gone on to win several 1,000-yard (910 m) competitions. 300 Win Mag bullet has an effective range of about 300 yards before needing hold-over to compensate for bullet drop. The flat trajectory of the . 300 Win Mag bullet allows skilled hunters with calibrated optics the ability to hit targets at 500 or even 1,000 yards away.
The Sierra MatchKing bullets are known for record-setting accuracy. The Federal load with a 190 grain Boat Tail Hollow Point is meant as a target shooting round. If you want to squeeze all the accuracy you can out of your 300 Win Mag, give the MatchKing a try.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.