RCBS MatchMaster Duo Full-Length Die Set .223 Remington

The RCBS MatchMaster Duo in .223 Remington pairs RCBS's dependable full-length sizing die with the precision MatchMaster micrometer seating die in a 2-die set designed for rifle reloaders who want match-grade seating consistency from a traditional full-length die setup.

The included full-length sizing die resizes fired .223 Remington brass and de-primes cases in a single pass, restoring uniform case dimensions for reliable chambering and consistent accuracy run after run. Paired with it, the MatchMaster seating die features RCBS's signature micrometer-adjustable seating stem, letting the reloader dial bullet seating depth to the thousandth without swapping stems or shimming bushings. The set delivers the precision of RCBS's flagship MatchMaster seating die alongside the reliability of a standard full-length sizing die.

This MatchMaster Duo configuration is compatible with RCBS shellholder #10 (sold separately) and falls under RCBS's Full Length die classification. Both dies are machined from quality steel, manufactured in the USA, and backed by RCBS's Limited Lifetime Warranty.

Whether you are loading match-grade .223 Rem for competition, building accurate varmint rounds, or producing clean practice ammunition, the MatchMaster Duo delivers RCBS flagship seating precision and proven full-length sizing performance in one convenient package.