The RCBS Matchmaster Competition Full-Length Bushing Die Set is built for precision reloading of .300 Winchester Magnum ammunition. It provides full-length resizing while using interchangeable neck bushings to control neck tension and concentricity for long-range loads. This die set builds on the familiar RCBS Gold Metal die set and is intended for serious handloaders focused on consistency and accuracy.
To determine the proper neck bushing size, measure the outside neck diameter of a loaded cartridge and subtract .002″ to .003″ to allow for a small amount of brass spring back.
Key Specifications
- The caliber is .300 Winchester Magnum.
- The cartridge is .300 Winchester Magnum.
- The die type is Bushing.
- The die style is Bushing Full Length Die Set.
- The set contains 2 pieces.
- The manufacturer is RCBS.
- The listed weight is 1.28.
- The listed shipping weight is 1.28.
- The product name includes Matchmaster Competition.
This Matchmaster set offers dependable full-length resizing and precise neck control for reloading match-grade .300 Win Mag ammunition. Its bushing system helps you tune neck tension for repeatable chambering and consistent ballistic performance, making it a practical choice for long-range and precision shooters who demand methodical, reliable reloading components.
