RCBS Full Length Die Set, .257 Roberts Improved - 32201

This RCBS 2-die full length rifle die set is designed for .257 Roberts Improved bottleneck cartridges and includes a full-length sizer die with expander-decapping unit and a seater die with bullet seater plug. The sizer die brings cases to SAAMI minimum dimensions, sizes the case body, de-primes, and expands the neck to accept bullets, while vents prevent case damage from trapped air. Ideal for reloaders seeking consistent, precision ammunition.