The L.E. Wilson Steel Neck Sizer Die Bushing .259 is a precision reloading component for handloaders who demand consistent neck tension and tight tolerances. This hardened stainless steel bushing works with L.E. Wilson neck sizing dies to control how snugly your case necks grip the bullet, a critical variable for accuracy and brass longevity. If you're chasing small groups at the range or need repeatable ammunition for hunting, proper neck sizing with the right bushing size is one of the easiest ways to improve consistency.
L.E. Wilson manufactures these bushings in .001" increments, giving you fine-tuned control over neck tension. The marked size refers to the middle of the bushing, which is reamed with a .003" taper. This design lets you flip the bushing (markings facing the case) if you need slightly tighter sizing—handy for hardened brass that's springing back or when you want to fine-tune squeeze without dropping to the next smaller bushing. The approach is similar to Redding neck bushings, but Wilson bushings are not compatible with Forster or RCBS dies.
Choosing the right bushing size is straightforward. Measure your loaded cartridge's outside neck diameter and subtract .002" to .003"—that accounts for normal brass springback and gives you the correct neck tension. Alternatively, measure your case neck wall thickness, double it, add your bullet diameter, and subtract .002" to .003". Either method gets you dialed in quickly. If your current bushing isn't giving you the neck tension you want, the incremental sizing options let you dial in the exact feel and performance your ammunition needs.
Key Features
- Hardened stainless steel construction for durability and repeatability
- Manufactured in .001" size increments for precise neck tension control
- .003" taper reamed into the middle of the bushing for consistent sizing
- Reversible design—flip to achieve slightly tighter sizing if needed
- Compatible with L.E. Wilson neck sizing dies
- Similar specifications to Redding neck bushings
Specifications
| Brand | L.E. Wilson |
| Product Type | Neck Sizer Die Bushing |
| Material | Hardened Stainless Steel |
| Bushing Size | .259" |
| Size Increment | .001" |
| Taper | .003" |
Frequently Asked Questions
What dies are compatible with L.E. Wilson neck bushings?
L.E. Wilson neck bushings work with L.E. Wilson neck sizing dies. They are not compatible with Forster or RCBS dies.
How do I choose the right bushing size for my cartridge?
Measure the outside neck diameter of your loaded cartridge and subtract .002" to .003"; this allows approximately .001" of brass to spring back for correct neck tension. Alternatively, measure your case neck wall thickness, multiply by two, add your bullet diameter, and subtract .002" to .003". Either method will give you the proper bushing size.
Can I flip the bushing to achieve different sizing?
Yes. The marked size refers to the middle of the bushing. Flipping it over so the markings face toward the case (markings facing down) allows slightly tighter sizing. This is useful for fine-tuning or as an emergency measure if brass has hardened and sprung back.
What does the .003" taper in the bushing do?
The .003" taper is reamed into the middle of the bushing. Since the case neck only reaches the middle during sizing, this taper design allows you to control the degree of squeeze and even reverse the bushing for alternate sizing options.
