Forster 0.258" Bump Neck Sizing Die Bushing

Forster employs a super-cooling cryogenic process to produce ultra-smooth bushings, resulting in superior loaded rounds. Cryogenically treated steel generates filler particles that refine and seal the steel's surface. The bushings undergo heat treatment and honing to achieve the exact specified internal diameter. Forster neck size bushing bump inserts are specifically engineered for exclusive use with the Forster precision plus bushing bump die The bumpers are precision-engineered with 0.001 in