Product or service Overview: IMR 4227 PowderProduction of IMR powders dates back more than 200 years when the organization was originally Established by E.I DuPont. Obtainable for use in several reloading apps, the IMR series of powder is dependable by reloaders all around the world.IMR 4227 Powder in stock now may be the Magnum Pistol Powder withi