RCBS Matchmaster Competition neck-size bushing die set provides precise control for reloading .300 Norma cartridges. The set pairs a neck sizing die with a micrometer seater and a changeable-diameter neck bushing system used by benchrest and long-range precision reloaders. Each die is made from case-hardened steel with internal surfaces precision-drilled, reamed, and hand-polished for consistent performance and long service life. The seater die features an oversized micrometer adjustment and a loading window to simplify and improve concentric bullet seating.
Key Specifications
- The set includes Neck Sizing Die and Bullet Seating Die.
- Designed for .300 Norma cartridges.
- Uses a changeable diameter neck bushing to control neck tension precisely.
- Sizing die includes a Titanium Carbo Nitride expander to reduce brass build-up.
- The seater features a bullet seating window with retention system for aligned seating.
- Equipped with a large oversize micrometer for fine, repeatable adjustments.
- Includes a free-floating self-centering bullet seating stem for concentric results.
- Standard 7/8″-14 thread compatible with common presses.
- Backed by a Limited Lifetime Warranty.
- Made in USA.
Purpose-built for precision reloaders, the Matchmaster Competition neck-bushing set delivers repeatable neck tension control and precise seating adjustments required for competitive and long-range applications. Durable finishes and carefully engineered features make this set a practical choice for reloaders seeking consistent, concentric ammunition preparation.
