Optimized for RCBS gold medal match series dies, these self-aligning, changeable neck bushings let precision reloaders dial in exact bullet neck tension. This not only prevents premature brass fatigue but also sharpens accuracy. The key to this performance lies in premium brass with consistent neck thickness. To find your ideal bushing, subtract 0.002 - 0.003 inches from the neck diameter of a loaded cartridge or calculate using the case's neck wall thickness times two, plus the bullet diameter, minus 0.001 inches. RCBS recommends stocking bushings one or two sizes on either side of your target diameter for flexibility.

• Proudly made in the USA for superior quality and reliability