Products Overview: IMR 4227 PowderProduction of IMR powders dates again about 200 many years when the company was initially Started by E.I DuPont. Available for use in lots of reloading applications, the IMR number of powder is trusted by reloaders all around the world.IMR 4227 Powder in stock now could be the Magnum Pistol Powder inside the IMR li… Read More