Item Overview: IMR 4227 PowderManufacture of IMR powders dates back again above 200 many years when the organization was originally Established by E.I DuPont. Accessible for use in many reloading purposes, the IMR series of powder is dependable by reloaders all around the world.IMR 4227 Powder in inventory now could be the Magnum Pistol Powder whil