Hardened stainless steel neck bushing designed for precision sizing in .001” increments with a .003” taper for fine-tuning neck tension.
For emergency use or fine-tuning, the bushing can be flipped to achieve tighter sizing if brass no longer holds the bullet properly.
Compatible exclusively with L.E. Wilson dies and not interchangeable with Forster or RCBS dies; two methods provided for selecting the correct bushing size.