Product or service Overview: IMR 4227 PowderProduction of IMR powders dates back again over 200 yrs when the organization was initially Started by E.I DuPont. Obtainable for use in lots of reloading apps, the IMR series of powder is trusted by reloaders all across the globe.IMR 4227 Powder in inventory now could be the Magnum Pistol Powder during t