The L.E. Wilson Steel Neck Sizer Die Bushing .284 gives you precision control over neck tension in your reloading process—something critical for consistent, accurate handloads. This hardened stainless steel bushing is sized in .001" increments and works with L.E. Wilson neck-sizing dies to fine-tune how much your case neck grips the bullet. Whether you're fine-tuning loads for a precision rifle or managing brass that's hardened and sprung back after multiple reloads, this bushing lets you dial in the exact neck tension your rounds need.
L.E. Wilson bushings are built to similar specifications as Redding neck bushings, but they're sized differently and won't interchange with Forster or RCBS dies, so verify your die manufacturer before ordering. The .284 designation refers to the middle of the bushing, which is reamed with a .003" taper. This design gives you two ways to tune tension: use it in the standard orientation for normal sizing, or flip it (markings facing down) for slightly tighter sizing when you need to squeeze extra neck tension—a useful trick for hardened brass or when fine-tuning would otherwise require stepping down to the next smaller bushing.
Selecting the right bushing size is straightforward: measure your loaded cartridge's neck diameter and subtract .002" to .003" to account for brass spring-back and ensure proper tension. Alternatively, measure your case neck wall thickness, double it, add your bullet diameter, and subtract .002" to .003". That math gives you the bushing size that'll hold your bullets consistently without excessive squeeze.
Key Features
- Hardened stainless steel construction for durability and precision
- Available in .001" size increments for fine-tuned neck tension control
- .003" taper profile reamed into the middle of the bushing
- Reversible design—flip to achieve tighter sizing when needed
- Ideal for managing hardened brass or dialing in custom load specifications
- Compatible with L.E. Wilson neck-sizing dies only (not Forster or RCBS)
Specifications
| Brand | L.E. Wilson |
| Product Type | Neck Sizer Die Bushing |
| Caliber | .284 |
| Material | Hardened Stainless Steel |
| Size Increments | .001" |
| Taper | .003" |
| Die 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 neck bushings are not compatible with Forster or RCBS dies. Make sure your die is an L.E. Wilson model before ordering.
How do I choose the right bushing size?
Measure the outside neck diameter of your loaded cartridge and subtract .002" to .003" to allow for brass spring-back. Alternatively, measure your case neck wall thickness, multiply by two, add your bullet diameter, and subtract .002" to .003". Either method gives you the bushing size needed for proper neck tension.
Can I flip the bushing to change how it sizes?
Yes. Using the bushing in the normal orientation provides standard sizing. Flipping it so the markings face toward the case (markings facing down) allows slightly tighter sizing—useful when brass has hardened and sprung back, or when you need more neck tension without stepping down to the next smaller bushing size.
What caliber is this bushing for?
This is a .284 caliber neck sizer die bushing, suitable for cartridges in that bore diameter.
