Production of IMR powders dates again about 200 a long time when the company was initially Established by E.I DuPont. Obtainable for use in many reloading programs, the IMR series of powder is reliable by reloaders all around the world.IMR 4227 Powder in inventory now is the Magnum Pistol Powder inside the IMR lineup. If imr 4227 load data it claim… Read More