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Neck tension is one of those little details that separates good handloads from great ones, and this L.E. Wilson Neck Sizer Die Bushing in .265 gives you a simple way to control it. Machined from hardened, polished steel, the bushing drops into a Wilson Neck Die or Wilson Bushing-Type Full-Length Sizing Die and sizes the outside of your case neck to a precise diameter. The number stamped on it, .265, tells you exactly what you're getting, since Wilson makes these in .001 inch increments right across the range.
Running an interchangeable bushing instead of a fixed neck die or a traditional expander ball keeps your necks truer and your brass happier. The neck isn't getting stretched out and dragged back over a ball on every cycle, so concentricity stays better and your cases last longer. For benchrest and precision bolt-action handloaders chasing consistent seating and tighter groups, that repeatability is the whole game.
Picking the correct bushing comes down to a quick measurement. Mic the outside diameter of a loaded round where the bullet sits in the neck, then subtract .002 to .003. So a loaded round measuring .268 minus .002 lands you on a .266 bushing. You can also work it from neck wall thickness: multiply the wall by two, add your bullet diameter, then subtract .002 to .003. Brass naturally springs back a touch after sizing, and that small subtraction accounts for it to give you a steady .001 to .002 of grip on the bullet.
These bushings are taper reamed, so the size marked refers to the middle. The case neck only reaches that center point, which means if your brass has work-hardened and started springing back more than you'd like, you can flip the bushing over with the markings facing down to pick up a slightly tighter squeeze. It's a small adjustment that comes in handy when you're fine-tuning a load. Made in the U.S.A.
The number refers to the finished diameter the bushing sizes your case neck to, measured at the middle of the bushing. Wilson makes these in .001 inch increments, so the .265 marking tells you it sizes the outside of the neck to .265 inch. Keep in mind the bushing is taper reamed, so that stamped size is the center measurement.
Measure the outside diameter of a loaded round where the bullet sits in the neck, then subtract .002 to .003. If that math lands you around .265, this is your bushing. You can also calculate it from neck wall thickness times two plus bullet diameter, minus .002 to .003 for brass spring-back.
It's made to drop into the L.E. Wilson Neck Die or the Wilson Bushing-Type Full-Length Sizing Die, and it freely interchanges across Wilson's bushing-type neck sizing dies. The die body itself is sold separately. These bushings are built to similar specs as Redding neck bushings as well.
A bushing sizes the neck from the outside to a diameter you choose, so you're not dragging an expander ball through the neck on every stroke. That keeps neck concentricity truer and reduces how much the brass gets worked, which helps your cases last longer. It also lets you fine-tune neck tension by swapping bushings as your brass and loads change.
| UPC | 815145024558 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | B-265 |
| Shipping Weight | 0.02 |
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