300 Winchester Magnum (Win ... firm Norma Precision was looking to expand its cartridge lineup. Its .308 Norma Magnum (Mag.), developed in 1960 and based upon the .375 H&H Mag.

That means there are 11 popular .30-caliber magnum cartridges to choose from. The most popular is the 300 Winchester Magnum. It’s one of the best long-range hunting cartridges and a great rifle ...

The 150-grain .300 Win. Mag. load from Norma’s Whitetail ammunition delivers a deadly soft-point bullet at blistering speeds resulting in short blood trails. As the name suggests, the rapid expansion ...