Description
The RCBS Matchmaster Competition Neck Bushing Die Set for .300 PRC is a precision neck-sizing and seating solution designed for serious reloading applications. Matchmaster dies are made from case-hardened steel with precision-drilled and reamed internal surfaces and hand-polished finishes for consistent, repeatable results. The set uses interchangeable neck bushings (sold separately) to let the user control neck tension while minimizing brass work. The seater die includes a loading window and a free-floating, self-centering seating stem for improved concentricity.
Key Specifications
- The die set is a Bushing Neck Die Set.
- The cartridge is .300 PRC.
- The neck-size configuration includes Neck Sizing Die and Bullet Seating Die.
- The system utilizes Interchangeable Neck Bushings (sold separately) to control neck tension.
- The sizing die includes a Titanium Carbo Nitride Expander for reduced brass build-up.
- The seater features a Bullet Seating Window with Retention System to improve alignment during seating.
- Adjustments are made with a Large Oversize Micrometer for fine control.
- The seater uses a Free-Floating Self-Centering Bullet Seating Stem for concentric seating.
- The die set uses a 7/8"-14 Thread standard for compatibility with common presses.
- The product is backed by a Limited Lifetime Warranty.
This Matchmaster set delivers the features precision reloaders rely on: controlled neck tension, smooth case extraction, and repeatable seating adjustments. Built for longevity and consistent performance, it supports disciplined reloading workflows where concentricity and case life matter.





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