The Lyman Neck Expanding Die is a reloading tool intended to improve neck uniformity and bullet seating for jacketed and cast bullet reloads. It uses an expanding design rather than a simple expander button, reducing case stretching and promoting more consistent neck geometry. This die is suitable for reloaders focused on repeatable, controlled neck sizing for handloaded ammunition.
Key Specifications
- The manufacturer is Lyman.
- The product name is Neck Expanding (M) Die.
- The cartridge compatibility is listed as .380 ACP in the provided attributes.
- The listing also references 9mm Luger in the supplied product name strings.
- The die style is Expander Dies.
- The shipping weight is 0.5813.
- The item weight is 0.5813.
- The die is designed for improved neck expansion on jacketed and cast bullets for more consistent seating.
This neck expanding die offers controlled neck formation for reloaders who prioritize repeatability and careful case preparation. Its expanding design helps maintain neck concentricity without the excessive stretching associated with some expander buttons, making it a practical tool for reloaders working with jacketed and cast bullet profiles.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




