Hardened stainless steel neck bushing from L.E. Wilson, with .001” increments and a .003” taper for precise sizing adjustments.
Reversible bushing design allows for emergency use or fine-tuning by flipping it to tighten the sizing if brass has hardened or to adjust neck tension.
Compatible exclusively with L.E. Wilson dies and not interchangeable with Forster or RCBS dies; selection based on loaded cartridge or case neck wall thickness measurements.