The RCBS Matchmaster Competition Neck Size Bushing Die Set for 7mm Rem Mag is engineered for precision reloading and consistent neck tension control. This neck-size set pairs a neck sizing die with a dedicated bullet seating die, giving reloaders the tools to achieve repeatable, concentric seating and minimal brass work. Components are produced from case-hardened steel with precision-drilled and reamed internal surfaces and hand-polished finishes for smooth operation. The seater die features a large micrometer adjustment and an integrated loading window to retain the bullet during seating for improved alignment.
Key Specifications
- The set includes a Neck Sizing Die and Bullet Seating Die.
- Utilizes a changeable neck bushing to precisely set neck tension (bushings sold separately).
- The sizing die includes a Titanium Carbo Nitride expander for reduced brass buildup and smoother extraction.
- The seater features a bullet seating window with a retention system to hold the bullet during seating.
- The seater provides a large oversized micrometer for fine, easy adjustments.
- Includes a free-floating self-centering bullet seating stem for concentric seating.
- Uses a 7/8″-14 thread to fit standard reloading presses.
- Backed by a Limited Lifetime Warranty.
- Made in USA.
Purpose-built for precision reloaders and competitive shooters, the Matchmaster Competition neck bushing die set for 7mm Rem Mag helps reduce brass work and improve consistency across batches. The combination of a changeable bushing system, Ti carbo-nitride expander, and a micrometer-grade seater gives fine control over neck tension and seating depth, supporting accurate, repeatable handloads. Built with durable materials and precision machining, this die set is suited to serious reloaders who require reliable, shop-grade tooling.
