In 2001, Winchester and Browning collaborated to introduce Rick Jamison’s .30 caliber wildcat magnum, which was branded the .300 Winchester Short Magnum or WSM (sometimes pronounced “wizzum”). By ...

The .300 Winchester Short Magnum (WSM) was introduced in 2001 and has become an extremely popular magnum cartridge because big-game hunters and handloaders have discovered it works well with a variety ...

These two magnum cartridges are closer than you might thing. The 7mm Rem Mag is pictured left, the 300 Win Mag is on the right. For cartridge connoisseurs, the early 1960s was a monumental time period ...

There’s no real definition as to what “magnum” means when it comes to rifle cartridges, but as far as 0.30-calibers rifle cartridges are concerned, “magnum” generally means a cartridge that’s more ...