Alliant Powder's Power ProA(R) 1200-R is made for high-volume shooters who burn through .223 ammunition at the range. The propellant is specifically formulated for progressive loading. It meters extremely well, and its double base provides consistent ignition and performance across a range of temperature and humidity extremes. Designed for .223 progressive loading Meters well Double base formulation Lot to lot consistency Made in the U.S.A. Mfg: Alliant Powder