Creation of IMR powders dates back again in excess of 200 years when the company was initially founded by E.I DuPont. Obtainable for use in lots of reloading purposes, the IMR series of powder is dependable by reloaders all across the globe.IMR 4227 Powder imr 4227 load data in inventory now may be the Magnum Pistol Powder in the IMR lineup. If it