The L.E. Wilson Neck Sizing Die Bushing, 0.311 inch (brand part no. B-311), gives precision handloaders exact control over neck tension by swapping in a bushing sized to their exact brass and bullet combination. L.E. Wilson builds this bushing for use in a Wilson Neck Die or Wilson Bushing-Type Full-Length Sizing Die (die body sold separately), sizing the outside of the case neck to the bushing’s stated diameter. Using an interchangeable bushing instead of a fixed neck diameter or a conventional expander ball improves case-neck concentricity and helps prolong brass life, since the neck is not being stretched and pulled back on every sizing cycle. Wilson makes bushings across nearly every practical size, which is what lets handloaders keep correct, consistent neck tension on their brass.

Key Specifications

• Sizes the case neck to 0.311 inch, following Wilson’s standard thousandths-of-an-inch bushing naming convention.
• Fits the L.E. Wilson Neck Die or Bushing-Type Full-Length Sizing Die (die body sold separately).
• Eliminates the need for a conventional expander ball, improving neck concentricity and prolonging brass life.
• Precision-made in the U.S.A.

Frequently Asked Questions

What does the number in the bushing name mean? It indicates the bushing sizes the case neck to 0.311 inch, following L.E. Wilson’s standard thousandths-of-an-inch bushing naming convention.

What die does this bushing fit? It fits the L.E. Wilson Neck Die or Wilson Bushing-Type Full-Length Sizing Die; the die body itself is sold separately.

Buy the L.E. Wilson Neck Sizing Die Bushing, 0.311 inch

Round out your bushing set with precise, repeatable neck tension for your next batch of brass. Order it from our Lubbock, Texas gun shop for fast, direct shipping, and browse more precision dies and bushings in our other reloading equipment category.