Reloaders using RCBS gold medal match series dies will benefit from these self-centering, interchangeable neck bushings, which let you control neck tension for better accuracy and extended case life by reducing neck brass work hardening. However, to achieve these improvements, brass with uniform neck thickness is essential. Two methods can help you find the right bushing size - subtract 0.002 - 0.003 inches from the loaded round's outside neck diameter or double the case neck wall thickness, add the bullet diameter and subtract 0.001 inches. RCBS suggests having a selection of bushings around your target diameter for flexibility.

• Proudly made in the USA for superior quality and reliability