RCBS MatchMaster Duo 6mm GT 2-Die Set - Full-Length Sizing & Seating

The RCBS MatchMaster Duo die set is a premium two-die reloading system chambered for the 6mm GT cartridge, pairing the company's flagship MatchMaster Seating Die with a rugged Full-Length Sizing Die for precision reloaders chasing match-grade accuracy. The seating die is engineered for micrometer-adjustable, repeatable seating depth, letting handloaders dial bullet depth to thousandths without swapping bushings or components.

Designed as a true two-die set with no bushings required, the MatchMaster Duo simplifies setup while delivering the tight, consistent neck tension and concentric seating serious 6mm GT shooters demand. The Full-Length Sizing Die brings fired brass back to spec and prepares it for consistent loading, while the MatchMaster Seating Die locks in seating depth so each round feeds identical ballistics. The set is compatible with Shellholder #3 and is part of RCBS's MatchMaster Duo line covering popular cartridges from .22 ARC up to .338 Lapua.

Backed by RCBS's Limited Lifetime Warranty, this set is an ideal upgrade or starter for handloaders working up match loads for the 6mm GT. Whether you're competing at long range or just want repeatable seating depth in a premium precision-rifle chambering, the MatchMaster Duo provides the components to get there in one matched pair.