RCBS Steel Neck Bushings provide precise tension on bullets when used with RCBS Gold Medal Match sizing dies, enhancing accuracy and prolonging case life.
Bushings should be self-centered for proper alignment and require traditional lubrication as they come "in-the-white" (bare steel).
To select the correct bushing size, subtract .002"-.003" from the loaded cartridge's outside neck diameter or add the bullet diameter to twice the neck wall thickness and then subtract .002"-.003".