RCBS 15469 Supreme 4-Piece Die Set 300 Win Mag Full Length

The RCBS 15469 Supreme Die Set is a complete 4-piece reloading package purpose-built for the 300 Win Mag rifle cartridge. The set pairs an RCBS Full Length die set with a matched shell holder and a Chamber Case Length Gauge, giving reloaders the core tooling they need to start resizing, seating, and trimming 300 Win Mag brass to spec right out of the box.

Built around RCBS's proven Full Length dies, the package delivers consistent case resizing and reliable bullet seating depth for magnum-length rifle brass. The included Chamber Case Length Gauge lets you trim cases to the proper overall length for a safe chamber fit in your specific rifle, while the matching shell holder keeps the case square and stable throughout the resizing and seating process.

Engineered for rifle cartridge reloading, the 300 Win Mag Supreme Die Set is a turnkey solution for hunters and long-range shooters handloading magnum rifle ammunition. The full-length die geometry is well suited to bottleneck cases that benefit from being pushed all the way back on every cycle.