Product Overview: IMR 4227 PowderProduction of IMR powders dates again around 200 a long time when the organization was originally Established by E.I DuPont. Obtainable for use in many reloading applications, the IMR series of powder is trusted by reloaders all around the world.IMR 4227 Powder in stock now is the Magnum Pistol Powder in the IMR lin… Read More