The L.E. Wilson 6 Brx bushing neck sizing die gives you precision control over neck tension—a critical variable for reloaders chasing match-grade accuracy. Unlike full-length sizing dies, this bushing neck die eliminates the conventional expander, which means less working of your brass and tighter case neck concentricity. That translates to longer brass life and more consistent rounds downrange. If you're loading for precision rifle applications where neck tension directly affects velocity uniformity and shot-to-shot grouping, this die solves a real problem that factory and standard dies can't address alone.
The die works by sizing only the outside of the case neck—down to 3/16" from the case mouth—using interchangeable sizing bushings that you select based on your loaded round diameter. You control exactly how much neck tension your brass receives by choosing the right bushing size, then use an arbor press to size each round. This methodical approach appeals to serious handloaders and precision shooters who understand that brass longevity and performance go hand in hand. Each die includes a decapping rod, so you can deprime cases during the sizing stroke.
Set up takes planning: you'll need to source sizing bushings separately (matched to your loaded round dimensions), and the neck die base is sold separately. Pairing this die with quality brass, consistent powder charges, and precision bullets completes the reload chain. This is not a production-line tool—it's for shooters who view reloading as part of the precision equation, not just ammunition cost-saving.
Key Features
- Interchangeable bushing system lets you dial in exact neck tension for your loads
- Sizes only the neck, preserving case dimensions and extending brass life
- Eliminates conventional expander, improving neck concentricity and consistency
- Sizes to 3/16" from case mouth, the depth preferred by many precision reloaders
- Works with standard arbor press for controlled, repeatable sizing
- Includes decapping rod for efficient case processing
Specifications
| Brand | L.E. Wilson |
| Die Type | Bushing Neck Sizing Die |
| Caliber | 6mm (6 Brx) |
| Sizing Method | Outside neck diameter via interchangeable bushings |
| Sizing Depth | 3/16" from case mouth |
| Press Type | Arbor Press |
| Accessories Included | Decapping rod; bushings and neck die base sold separately |
Frequently Asked Questions
Do I need to buy bushings separately?
Yes. The die itself is supplied without sizing bushings. You'll need to determine your loaded round diameter and purchase bushings matched to your specifications.
What's a neck die base, and do I need one?
The neck die base is a separate component required to mount this die in your reloading setup. It is sold separately and must be obtained to use the die.
How is this different from a standard full-length sizing die?
This bushing neck die sizes only the outside of the case neck and eliminates the expander, which improves concentricity and reduces brass work. Many precision reloaders prefer this approach because it extends brass life and produces more consistent ammunition.
Can I use this die with a standard reloading press?
No. This die is designed to work with an arbor press, which provides controlled, consistent sizing force for this type of operation.
