Weatherby Select .300 Weatherby Magnum ammunition delivers 180 grain Interlock bullets (Model H300180IL) engineered for hunting performance across multiple game sizes. The Interlock soft point bullet uses Hornady’s secant ogive design paired with an exclusive InterLock ring that locks the core and jacket together during expansion, preserving bullet mass and retained energy.
This is new production, non-corrosive ammunition with boxer primers and reloadable brass cases. The load generates 3240 fps muzzle velocity, 4195 lb/ft of muzzle energy, and carries a ballistic coefficient of 0.425. It suits hunting medium-sized game (50 to 300 lbs) such as whitetail deer, as well as large game (300 to 1500 lbs) including elk. The .300 Weatherby Magnum remains the most popular and versatile Weatherby cartridge available.
Each box contains 20 rounds. Important: This ammunition is not interchangeable with .300 Winchester Magnum ammunition—verify the specific cartridge designation stamped on your rifle’s barrel before loading.






