The L.E. Wilson Neck Sizing Die Bushing 309 is a hardened stainless steel neck bushing designed for hand loaders who need precise, repeatable neck sizing control. Built to exacting standards similar to Redding neck bushings, Wilson bushings deliver the tight tolerances serious reloaders demand—especially when you're working with match-grade brass and need to dial in perfect neck tension for consistent bullet seating and velocity.
What sets Wilson bushings apart is their manufacturing precision and clever design flexibility. Each bushing is made in .001" increments, and the marked size refers to the middle of the bushing, which is reamed with a .003" taper. This means you have two sizing options: use the bushing normally for standard neck tension, or flip it over (markings facing down) to achieve slightly tighter sizing—a handy trick when brass has work-hardened and begun to spring back, or when you're fine-tuning the squeeze between one bushing size and the next. Think of it as having two bushings in one.
Wilson bushings are not compatible with Forster or RCBS dies, so verify your die system before purchasing. If you're running a Wilson die, this bushing will integrate seamlessly into your sizing workflow. Hand loaders who prioritize neck tension consistency—whether for precision rifle, benchrest, or long-range hunting loads—will appreciate the control and repeatability these bushings provide.
Key Features
- Hardened stainless steel construction for durability and precision
- Manufactured in .001" increments for exact sizing control
- Dual-orientation design: use normally or flip for tighter sizing adjustment
- .003" reamed taper in the middle section
- Specs match Redding neck bushings
- Ideal for match-grade reloading and precision rifle work
Specifications
| Manufacturer | L.E. Wilson |
| Product Type | Neck Sizing Die Bushing |
| Bushing Size | 309 |
| Material | Hardened Stainless Steel |
| Increment | .001" |
| Taper | .003" |
| Compatibility | L.E. Wilson dies (not compatible with Forster or RCBS) |
Frequently Asked Questions
Which die systems work with L.E. Wilson neck bushings?
L.E. Wilson neck bushings are designed for L.E. Wilson dies. They are not compatible with Forster or RCBS reloading dies, so verify your die manufacturer before ordering.
How do I choose the correct bushing size?
You can select the right bushing two ways: (1) Measure the outside neck diameter of your loaded cartridge and subtract .002" to .003" to allow for brass spring-back and correct neck tension, or (2) Measure your case neck wall thickness, multiply by two, add your bullet diameter, and subtract .002" to .003". The .001" increments in Wilson's lineup give you fine-tuned control.
Can I flip the bushing over for tighter sizing?
Yes. Since the marked size refers to the middle of the bushing and the case neck only reaches that middle point, you can flip the bushing over (markings facing down) to achieve slightly tighter sizing. This works well for fine-tuning between bushing sizes or when hardened brass needs more squeeze to hold the bullet securely.
What is the .003" taper in the bushing for?
The .003" taper is reamed into the middle section of the bushing and helps create the sizing geometry that allows for the dual-orientation use and controlled neck tension adjustment.
