Description
.300 Winchester Magnum 180 Grain Swift A-Frame~ The .300 Winchester Magnum (also known as .300 Win Mag or 300WM) (7.62×67mm) 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 .300 Winchester 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.
Choice Ammunition, and our 100% Hand-Loading techniques- produce a round of ammunition for the .300 Winchester Magnum that is demanded in big game hunting. Accuracy, consistency and dependability are crucial at that final moments of your hunt. Choice Ammunition takes this responsibility seriously by meticulously weighing each powder charge with our proprietary formulas and temperature insensitive powders, seating the bullet at the exact length for optimal performance and test firing each and every lot of ammunition at an average of 500% over industry average. We have no high speed production machines- only passionate and dedicated load technicians pulling each and every handle, producing one round of ammunition at a time.
The Bullet:

Swift A-Frame fans, here you go! For 28 years A-Frame rifle bullets have set the standard by which all bonded bullets are measured. With its controlled expansion of 2.2x and 95%+ weight retention A-Frame penetrates deep and mushrooms perfectly, making it the choice of hunters for use on any game, anywhere in the world. A-Frame bullet Lever Action bullet is reconfigured for the velocity windows of various lever-action rifle cartridges. Like the other A-Frames, front and rear lead cores are separated by an integral partition with the front core bonded to a thick copper jacket. Called the Lever Action Series, all have flat-nose profiles. The A-Frame’s construction allows Swift to design a bullet for low-velocity expansion on soft targets, such as deer or bear, without sacrificing penetration on larger game.
- Velocity 3,065 fps.
- 100% Hand-Loaded
- G-1 BC 0.400














