Berger Unprimed 300 WSM Rifle Brass, 100-Count

Berger Bullets Unprimed Cases in 300 WSM (Berger part no. 4PH7080C) give precision handloaders a clean starting point for building consistent 300 Winchester Short Magnum ammunition. Among the many short-magnum cartridges introduced over the years, the 300 WSM has stood out for delivering energy equal to the 300 Win Mag while fitting into a shorter, more compact action. That translates to enhanced rigidity, a shorter bolt throw, and a more compact powder column, all of which enhance performance whether the rifle is on the hunt or on the firing line. Each box ships with 100 unprimed cases ready for priming and load development.

Key Specifications

• Chambered for 300 WSM (Winchester Short Magnum), a short-action magnum cartridge.
• Cases ship unprimed, ready for the handloader’s own priming and load workup.
• Each box holds 100 cases, giving a solid working quantity for load development.
• The 300 WSM’s short action design delivers a shorter bolt throw versus legacy belted magnums.
• Cartridge geometry uses a compact powder column that supports efficient powder burn.

Frequently Asked Questions

How does 300 WSM compare to 300 Winchester Magnum? The 300 WSM delivers energy equal to the 300 Win Mag while fitting a shorter action, giving a shorter bolt throw and a more compact rifle overall.

Are these cases primed? No, these ship as unprimed cases, ready for the handloader to prime and load to their own specifications.

Buy the Berger Unprimed 300 WSM Rifle Brass, 100-Count

Start your 300 WSM handloads with clean, consistent brass from a name trusted for precision. Berger Bullets builds its brass to the same standard as its match bullets. Order it from our Lubbock, Texas gun shop and browse our full reloading brass selection for fast, direct shipping.