Lyman Neck Expanding "M-Inch" die 7Mm Rem Mag Mauser (7 X 57-mm)
The Two Step Neck Expanding (M) Die won't stretch cases as does a standard expander button. Extends case life and improves accuracy of reloads. For use with 7mm Rem Mag, 7mm x 57 Mauser, .280 Rem, 7mm-08 Rem. Standard 7/8 x 14 thread.