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The Lyman Neck Expanding Rifle 25 Long M Die for .25-06 Remington/.257 Roberts improves the accuracy of cast and jacketed bullet reloads.
- Doesn't stretch cases like standard expander button style dies do.
- Works in a two step process, the first step expands the inside of the case neck to just under bullet diameter.
- The second step expands the case mouth to bullet diameter or slightly over so that the bullet can be started perfectly centered.