Creation of IMR powders dates back about 200 yrs when the organization was initially Established by E.I DuPont. Readily available for use in lots of reloading purposes, the IMR series of powder is trustworthy by reloaders all imr 4227 across the globe.IMR 4227 Powder in inventory now is the Magnum Pistol Powder inside the IMR lineup. If it claims M