RCBS 15469 Supreme 2-Die Set for 300 Winchester Magnum Reloading

The RCBS 15469 Supreme 2-Die Set for 300 Winchester Magnum delivers everything a reloader needs to get up and running with one of hunting's most powerful and versatile cartridges. This is a complete reloading system in a box—no hunting through bins for a die set here, then another bin for a shell holder, then realizing you forgot the case length gauge. RCBS has bundled the essentials together so you spend less time sourcing components and more time at the bench or in the field with ammo you've built yourself.

The 300 Win Mag is a workhorse for long-range hunting, precision rifle competitions, and serious back-country hunting where flat trajectory and energy retention matter. Once you commit to that cartridge, consistency in handloading is everything—velocity spread, case length uniformity, and proper die sizing all feed into the performance you demand. This Supreme set includes RCBS's Full Length die set, a shell holder matched to your cartridge, and a Chamber Case Length Gauge so you can verify your brass is conforming correctly before it enters the sizing die.

RCBS has engineered these dies and gauges to the tight tolerances reloaders expect. You're not buying a quick-and-dirty kit; you're buying components built to last through thousands of rounds and designed for the precision work that separates good handloads from great ones. If you're new to 300 Win Mag reloading or adding to an existing bench, this set eliminates the guesswork of compatibility and gives you the confidence that every component was designed to work together.

Key Features

• Complete system: Full Length die set, shell holder, and Chamber Case Length Gauge included
• Sized specifically for 300 Winchester Magnum
• RCBS engineering and tolerances for consistent, repeatable results
• All components matched and ready to use together

Specifications

Frequently Asked Questions

What comes in the RCBS 15469 Supreme 2-Die Set?

The set includes an RCBS Full Length die set for 300 Winchester Magnum, a matched shell holder, and a Chamber Case Length Gauge to help verify proper case sizing before reloading.

Is this set designed for 300 Winchester Magnum?

Yes. This is RCBS model 15469, sized and configured specifically for 300 Winchester Magnum reloading.

Do I need to buy anything else to start reloading 300 Win Mag?

This set provides the dies, shell holder, and case length gauge. You'll still need a reloading press, scale, powder measure, primer tools, and other bench accessories, but this set gives you the cartridge-specific components in one package.