Production of IMR powders dates back again about 200 years when the organization was initially Started by E.I DuPont. Accessible for use in many reloading purposes, the IMR series of powder is trustworthy by reloaders all around the world. IMR 4227 Powder in inventory now would be the Magnum Pistol https://imr-4227-load-data37036.pages10.com/imr-4227-powder-63527803