A L.E. Wilson steel neck sizer die bushing in .285 is a precision reloading component designed for shooters who want tight control over neck tension and bullet fit. If you're working with a neck-sizer die—whether for match-grade handloading, AR-10 cartridges in that caliber range, or other applications where consistent neck sizing matters—this hardened stainless steel bushing gives you the flexibility to fine-tune your brass without stepping up to the next size down. Wilson manufactures these bushings in .001" increments, so a .285 bushing is a specific, known size with predictable results.
The real advantage here is adjustability. The bushing is reamed with a .003" taper, and the marked size refers to the middle of the bushing bore. Normally, you install it marking-side up; the case neck contacts the middle diameter for standard sizing. But if your brass has work-hardened and springs back more than you'd like, or if you want a lighter squeeze on the bullet than the next smaller bushing would give, you can flip it over—marking facing down toward the case—to achieve a slightly tighter fit. It's a practical workaround that extends the useful life of your bushing and lets you dial in neck tension without buying multiple sizes.
L.E. Wilson bushings are made to specifications similar to Redding neck bushings, so if you're familiar with that standard, this will feel right at home. Important: these will not interchange with Forster or RCBS dies, so confirm your die body before ordering. For caliber selection, measure your loaded cartridge neck diameter and subtract .002" to .003" to account for brass springback, or calculate from your case neck wall thickness, bullet diameter, and the same springback allowance.
