Manufacture of IMR powders dates back around 200 decades when the corporate was at first Started by E.I DuPont. Obtainable for use in many reloading programs, the IMR series of powder is dependable by reloaders all imr 4227 load data around the world.IMR 4227 Powder in stock now is the Magnum Pistol Powder while in imr 4227 load data the IMR lineup… Read More