Production of IMR powders dates back about 200 years when the company was originally founded by E.I DuPont. Obtainable for use in several reloading programs, the IMR number of powder is trustworthy by reloaders all around the world.IMR 4227 Powder in stock imr 4227 now may be the Magnum Pistol Powder inside the IMR lineup. If it suggests Magnum, 42… Read More