Product Overview: IMR 4227 PowderManufacture of IMR powders dates back over two hundred several years when the business was originally founded by E.I DuPont. Obtainable for use in lots of reloading applications, the IMR number of powder is trustworthy by reloaders all around the world.IMR 4227 Powder in stock now will be the Magnum Pistol Powder du