RC BUSHING DIAMETER - 0.365

The RCBS RC Bushing Diameter 0.365 (part number 81680) is a precision reloading component engineered for shooters who demand exact case neck control during the ammunition loading process. This bushing is a critical element in the RCBS bushing-style sizing die system, which has become the standard for handloaders seeking superior concentricity and consistent bullet seating depth across production runs.

The 0.365-inch diameter specification is designed to resize fired cases to precise neck dimensions, minimizing runout and ensuring that each round chambers smoothly while maintaining uniform neck tension on the seated bullet. RCBS bushings work by floating on a hardened steel mandrel, which allows the case neck to be sized without sizing the entire case body. This targeted approach preserves case-wall consistency and extends case life—a measurable advantage over full-length resizing for shooters who reload the same cases repeatedly. The bushing's compact 1.5-inch length and lightweight design (0.02 lbs) integrate seamlessly into standard RCBS press setups without requiring additional equipment or die modifications.

This component serves precision rifle and handgun reloaders who prioritize accuracy and consistency. Whether loading match-grade ammunition for competition, hunting, or precision rifle training, the 0.365 bushing addresses the fundamental challenge of neck runout—a primary source of vertical dispersion at distance. Serious handloaders recognize that bushing-style sizing delivers measurably tighter groups compared to conventional full-length dies, making this RCBS bushing an essential upgrade for those committed to ammunition quality and performance verification.