Lyman Deluxe Neck Sizer Die with Carbide BTN

The Lyman Deluxe Neck Sizer Die pairs a precision-machined, hardened die body with a super-hard, slick carbide expander button that free-floats on its rod to self-center in the case neck. Because the expander button passes smoothly through the neck, the die is designed to reduce case stretching and increase case life while supporting enhanced accuracy for the reloader.

• Precision-machined, hardened die body for consistent sizing.
• Slick carbide expander button that free-floats to self-center in the neck.
• Expander button geometry and finish reduce friction when passing through the case neck.

Use of a hardened die body with a low-friction carbide expander gives more consistent neck dimensions and gentler handling of brass, helping reloaders preserve cases and maintain more repeatable bullet release characteristics. The die’s self-centering expander promotes uniform neck expansion and alignment during sizing, a practical benefit that supports reliable reload preparation.