RCBS Small Base Taper Crimp Die Set AR Series .204 Ruger Model 10307 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.
Caliber: .204 Ruger Type: Small Base/Taper Crimp # Of Dies In A Set: 2 Carbide Y/N: N
