Manufacture of IMR powders dates back about two hundred years when the business was initially founded by E.I DuPont. Available for use in several reloading apps, the IMR series of powder is reliable by reloaders all around the world. IMR 4227 Powder in stock now is the Magnum Pistol Powder https://imr-422781480.theisblog.com/27937514/imr-4227-powder