RCBS 12601 Full-Length 2-Die Set Group A .257 Weatherby Mag

The RCBS 12601 is a Full-Length 2-Die Set in Group A, purpose-built for reloading bottleneck .257 Weatherby Magnum rifle cases. This two-die set gives the reloader everything needed to take fired brass from depriming and resizing through finished, loaded rounds ready for the range or field.

The set consists of a Full-Length Sizer Die with an integrated Expander-Decapping Unit that removes the spent primer and opens the case mouth in a single step before resizing the full case body for reliable chambering. Paired with it is the Seater Die, which seats the bullet to the desired depth. Together, the two dies handle the complete bottleneck-case reloading process for the .257 Weatherby Magnum.

This set is part of RCBS's Group A die family and uses Shellholder #4 (sold separately). Backed by RCBS's reputation for long service life and repeatable accuracy, the 12601 is a reliable foundation for any .257 Weatherby Magnum reloader's bench setup.