RCBS® AR Series Die Sets are a must for progressive reloaders. They feature a Small Base Sizer Die designed for semi-automatic firearms, and a Taper Crimp Seater Die. The Small Base Sizer guarantees the cartridge will rechamber in AR-platform weapons.
Small base sizer sizes the base of the case slightly smaller than the full length sizer to ensure proper functioning in automatic, semi-automatic, pump, slide and some lever action rifles. Includes: small base sizer and bullet seater die. Shellholder sold separately.
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