The RCBS AR Series Die Set is engineered for progressive reloaders working with the .224 Valkyrie cartridge, combining a Small Base Sizer Die and a Taper Crimp Seater Die. The sizing die is specifically designed for semi-automatic firearms, reducing brass dimensions below SAAMI specifications to enhance reliability in AR-15 pattern rifles and similar platforms.
The small base sizing die brings brass to minimum specifications, ensuring reliable chambering in every round. The 7-degree taper crimp seater die accommodates variable case lengths with greater forgiveness, minimizing bulges and buckled shoulders when seating cannelured bullets. Compatible with any single stage or turret press featuring 7/8”-14 threaded die holes, this set delivers the precision necessary for consistent, reliable ammunition production and includes a lifetime manufacturer’s warranty.
