RCBS Steel Neck Bushings provide precise bullet tension with RCBS Gold Medal Match sizing dies, improving accuracy and prolonging case life.
Bushings should be self-centered and come in bare steel, requiring traditional lubrication, and are recommended in multiple sizes for optimal fit.
To select the correct bushing size, subtract .002"-.003" from the loaded cartridge's outside neck diameter or calculate based on case neck wall thickness and bullet diameter.