RCBS 12501 Full-Length 2-Die Set .257 Roberts - Group A

The RCBS 12501 Full-Length 2-Die Set Group A is a precision reloading toolset engineered for the .257 Roberts bottleneck rifle cartridge. Part of RCBS's popular Group A lineup, this two-die set provides reloaders with everything needed to bring fired .257 Roberts brass back to SAAMI specification and seat bullets with consistent accuracy.

The set includes a Full-Length Sizing Die with an integrated Expander-Decapping Unit that resizes the case body and neck while simultaneously pushing out spent primers. The matching Seater Die features a built-in Bullet Seater Plug for precise, repeatable bullet seating depth across every round you reload. Both dies are machined from RCBS's proprietary die steel for long service life and are threaded in the industry-standard 7/8"-14 pattern that fits the vast majority of single-stage and progressive reloading presses.

Built specifically for bottleneck rifle cases and engineered for repeatable accuracy, this RCBS Group A die set delivers the consistency and reliability that handloaders have trusted from RCBS for decades, making the 12501 an ideal foundation for any .257 Roberts reloading bench.