Production of IMR powders dates back over 200 yrs when the company was initially Launched by E.I DuPont. Obtainable for use in several reloading applications, the IMR series of powder is trusted by reloaders all across the globe. IMR 4227 Powder in stock now would be the Magnum Pistol Powder https://imr-4227-load-data82510.gynoblog.com/27427990/imr-4227-powder