The L.E. Wilson steel neck sizer die bushing in .326" is a precision reloading component built for handloaders who demand tight, consistent neck tension without fire-forming or case prep headaches. Unlike generic sizing dies, Wilson's bushings let you dial in exactly how much pressure the case neck exerts on the bullet—critical for accuracy and brass longevity. This hardened stainless steel bushing works with L.E. Wilson neck sizer dies and is manufactured in .001" increments for fine control.
The .326" marking refers to the middle of the bushing, which is reamed with a .003" taper. Because the case neck only contacts the middle section, you can flip the bushing over (markings facing the case) to achieve a slightly tighter sizing than normal—a useful trick for hardened brass that's lost neck tension or when you need to fine-tune squeeze without stepping down to the next smaller bushing. This gives serious reloaders the flexibility to extend brass life and optimize performance without buying multiple dies.
Wilson bushings are made to similar specifications as Redding neck bushings but are not compatible with Forster or RCBS dies, so confirm your die manufacturer before ordering. Selecting the right bushing size is straightforward: measure your loaded round's outside neck diameter and subtract .002" to .003" for proper spring-back, or use the alternative method of measuring case neck wall thickness, doubling it, adding your bullet diameter, and subtracting .002" to .003". Either way, you'll nail consistent neck tension that keeps velocity spreads tight and groups small.
