The L.E. Wilson Steel Neck Sizer Die Bushing .329 is a precision reloading component designed for handloaders who demand consistent neck tension and case control. Wilson's hardened stainless steel bushings are manufactured in .001" increments, giving you the fine-tuning ability that serious reloaders need to dial in ammunition performance. Whether you're fine-tuning loads for a tight-grouping rifle or managing brass that's started to work-harden, this .329 bushing fits into L.E. Wilson neck-sizing dies and works with Wilson's taper-reamed design—the bushing's middle diameter is reamed with a .003" taper that controls exactly how much the case neck compresses around your bullet.
What sets Wilson bushings apart is their versatility in the die. The standard way to use this bushing provides consistent sizing, but you can flip it over (markings facing down toward the case) to achieve slightly tighter sizing—a useful trick when brass has hardened and won't hold bullets with normal setup, or when you need to fine-tune neck tension without stepping down to the next smaller bushing. This flexibility makes Wilson bushings a favorite among precision shooters who reload for long-range hunting, competition, and match-grade ammunition development.
Wilson bushings are made to specifications similar to Redding neck bushings and will work with most standard L.E. Wilson dies, but they're not compatible with Forster or RCBS neck-sizing dies. If you already have a Wilson die set or are building around Wilson equipment, this .329 bushing gives you the precision sizing control that separates good loads from great ones.
Key Features
- Hardened stainless steel construction for durability and consistency
- Manufactured in .001" increments for precise neck tension control
- Reversible design—flip over for tighter sizing without changing bushings
- .003" taper reamed into bushing diameter for controlled case neck compression
- Compatible with L.E. Wilson neck-sizing dies
- Ideal for precision reloading, match ammunition, and fine-tuning neck tension
Specifications
| Manufacturer | L.E. Wilson |
| Product Type | Steel Neck Sizer Die Bushing |
| Size | .329" |
| Material | Hardened Stainless Steel |
| Bushing Increment | .001" |
| Taper Design | .003" taper reamed in diameter |
Frequently Asked Questions
Will this bushing work with my Forster or RCBS neck-sizing die?
No. L.E. Wilson neck bushings are designed specifically for Wilson dies and are not compatible with Forster or RCBS neck-sizing dies.
How do I choose the right bushing size?
Wilson provides two methods: (1) Measure the outside diameter of your loaded cartridge and subtract .002" to .003" to allow for brass spring-back and proper neck tension, or (2) measure your case neck wall thickness, multiply by two, add your bullet diameter, and subtract .002" to .003".
What does flipping the bushing over do?
Flipping the bushing so the markings face down toward the case achieves slightly tighter sizing. This is useful for fine-tuning neck tension on work-hardened brass that won't hold bullets with standard setup, or when you need adjustment without stepping down to the next smaller bushing size.
Is this bushing reversible?
Yes. The reversible design allows you to flip it over in the die for tighter sizing in situations where normal setup no longer provides adequate neck tension.
