Product or service Overview: IMR 4227 PowderCreation of IMR powders dates again about 200 many years when the company was at first Started by E.I DuPont. Readily available for use in many reloading apps, the IMR series of powder is trustworthy by reloaders all around the world.IMR 4227 Powder in stock now will be the Magnum Pistol Powder during theā¦ Read More