The RCBS 22469 Supreme Die Set delivers precision reloading capabilities for .300 Blackout cartridges with advanced engineering that ensures consistent case preparation and bullet seating. This two-die set incorporates RCBS's refined manufacturing standards to produce match-grade ammunition suitable for both subsonic and supersonic loads.
What Makes This Different
The Supreme series features enhanced internal geometry compared to standard RCBS die sets, with tighter manufacturing tolerances that reduce runout to under 0.002 inches. The full-length sizing die includes an expander ball machined to exact specifications, while the seating die utilizes a floating bullet guide system that prevents bullet deformation during the seating process. These improvements result in more consistent chamber fit and improved accuracy potential over conventional die designs.
Key Features
- Two-die set includes full-length sizing die with decapping pin and bullet seating die
- Machined from hardened steel with precision-ground surfaces for dimensional consistency
- Compatible with all standard 7/8-14 TPI reloading presses including RCBS, Lee, Hornady, and Dillon models
- Floating bullet guide in seating die prevents bullet tip damage and ensures straight seating
- Expander ball sized specifically for .300 Blackout case neck tension requirements
- Includes detailed reloading instructions with starting load data
- Carbide sizing ring available separately for extended die life
Performance testing shows this die set maintains case concentricity within 0.001 inches when properly adjusted, contributing to sub-MOA accuracy potential in quality firearms. The sizing die handles both new and fired brass effectively, with sufficient case neck tension for reliable powder retention in both light subsonic and heavy supersonic bullet weights. Weather-resistant finish prevents corrosion during storage, while the precision threading ensures consistent setup between reloading sessions.
Technical Specs
- Caliber: .300 AAC Blackout (.300 BLK)
- Thread specification: 7/8-14 TPI standard
- Die body material: Heat-treated alloy steel
- Set includes: Full-length sizing die, bullet seating die, shell holder
- Compatible bullet weights: 110-220 grains
- Maximum case length capacity: 1.368 inches
- Country of origin: United States
- Manufacturer warranty: Limited lifetime warranty
This die set represents proven RCBS engineering applied to one of today's most versatile rifle cartridges. Reloaders seeking consistent results for hunting, tactical applications, or precision shooting will find the Supreme series delivers the accuracy and reliability demanded by serious ammunition crafters.