Production of IMR powders dates back about 200 several years when the company was initially Launched by E.I DuPont. Available for use in many reloading programs, the IMR number of powder is dependable by reloaders all around the world. IMR 4227 Powder in stock now may be the Magnum Pistol https://imr-422749360.tribunablog.com/imr-4227-powder-42044506