Item Overview: IMR 4227 PowderManufacture of IMR powders dates back again above 200 many years when the organization was at first Launched by E.I DuPont. Accessible for use in many reloading apps, the IMR series of powder is reliable by reloaders all across the globe.IMR 4227 Powder in inventory now may be the Magnum Pistol Powder within the IMR li