RCBS Supreme Die Set .300 AAC Blackout Full Length 4-Piece

The RCBS Supreme Die Set for .300 AAC Blackout pairs a full-length bottleneck reloading die set with a shell holder and Chamber Case Length Gauge in one convenient 4-piece package. Designed specifically for the .300 AAC Blackout bottleneck cartridge, this set delivers everything a handloader needs to start producing accurate, consistent ammunition right out of the box.

At the core of the set is the Full-Length Sizer Die with an integrated Expander-Decapping Unit, which resizes fired .300 BLK cases back to specification and removes spent primers in a single stroke. The companion Seater Die seats projectiles to your chosen overall length with repeatable precision, while the included shell holder and Chamber Case Length Gauge round out the package so you are ready to reload from the start. All dies are machined from case hardened steel for long service life under repeated use.

This is a new production reloading die set from RCBS, caliber-grouped specifically for .300 AAC Blackout.