The L.E. Wilson Steel Neck Sizer Die Bushing .330 is a hardened stainless steel neck bushing designed for reloaders who demand precision control over case neck tension. If you're running a Wilson neck sizing die and want to fine-tune how tightly your brass grips the bullet, this .330 bushing gives you that adjustment capability in a robust, reliable package built to similar specifications as Redding neck bushings.
Wilson manufactures these bushings in .001" increments, and the marked size refers to the middle of the bushing, which is reamed with a .003" taper. That design means you get two effective sizing options from a single bushing: use it normally for standard sizing, or flip it over (markings facing the case) to achieve a slightly tighter neck fit. This reversibility is handy when brass hardens after multiple reloads and springs back more than usual, or when you need to dial in less "squeeze" on the bullet without stepping down to the next smaller bushing. It's a practical tool for handloaders who are serious about consistency and want to avoid the guesswork.
One important note: L.E. Wilson bushings are designed specifically for Wilson neck sizing dies and will not work with Forster or RCBS dies, so verify your die brand before ordering. Selecting the right bushing size is straightforward—measure your loaded cartridge's outside neck diameter and subtract .002" to .003" (allowing roughly .001" for brass spring-back), or use the math method of measuring case neck wall thickness, doubling it, adding bullet diameter, and subtracting .002" to .003".
Key Features
- Hardened stainless steel construction for durability and longevity
- Manufactured in .001" increments for precise sizing control
- Reversible design—flip the bushing to achieve tighter neck fit when needed
- .003" reamed taper for consistent case contact
- Designed to Wilson specifications; not compatible with Forster or RCBS dies
- Ideal for fine-tuning neck tension on hardened brass or optimizing bullet grip
Specifications
| Material | Hardened stainless steel |
| Bushing Size | .330" |
| Sizing Increment | .001" |
| Taper | .003" |
| Compatibility | L.E. Wilson neck sizing dies only |
Frequently Asked Questions
Will this bushing work with my Forster or RCBS neck sizing die?
No. L.E. Wilson bushings are designed exclusively for Wilson neck sizing dies and are not compatible with Forster or RCBS equipment.
How do I choose the correct bushing size for my cartridge?
Measure the outside neck diameter of your loaded cartridge and subtract .002" to .003" to account for brass spring-back (roughly .001" of neck tension). Alternatively, measure your case neck wall thickness, multiply by two, add your bullet diameter, then subtract .002" to .003". The result is the bushing size you need.
Can I flip this bushing over to get a tighter fit?
Yes. The bushing can be reversed so the markings face toward the case, which provides a slightly tighter sizing action. This is useful for hardened brass that springs back excessively or for fine-tuning neck tension without moving down to the next smaller bushing size.
What's the difference between this bushing and the next size up or down?
L.E. Wilson bushings are made in .001" increments. Each size change of .001" alters the squeeze on the bullet. Choosing the correct size (or reversing it for tighter fit) lets you optimize neck tension without jumping a full increment.
