Winchester Ammo WSC300WMU 300 Win Mag Unprimed Rifle Brass 50/Bag

The Winchester Ammo WSC300WMU unprimed cases are precision-manufactured brass shell casings designed for handloaders working with the .300 Winchester Magnum cartridge. Sold as a 50-count bag, each case is fully unprimed, allowing the reloader to select primers, powders, and projectiles for their own custom load development.

Winchester shellcases are engineered to precise tolerances to ensure smooth-feeding and positive chambering in any rifle chambered for 300 Win Mag. The consistent case dimensions provide a quality foundation for reloading this magnum rifle cartridge.

The .300 Winchester Magnum is a belted, bottlenecked magnum rifle cartridge introduced by the Winchester Repeating Arms Company.

Please note: This product contains unprimed brass cases only and is a reloading component, not loaded ammunition. Primers, powder, and projectiles are required to complete a finished cartridge.