Item Overview: IMR 4227 PowderProduction of IMR powders dates back around two hundred yrs when the corporate was originally Established 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 will be the Magnum Pistol Powder during the IMR line… Read More