Production of IMR powders dates back about two hundred decades when the company was originally Started by E.I DuPont. Obtainable for use in lots of reloading applications, the IMR number of powder is trusted by reloaders all around the world. IMR 4227 Powder in stock now is the Magnum Pistol https://imr-4227-load-data83692.total-blog.com/imr-4227-powder-52936558