Creation of IMR powders dates back around 200 yrs when the company was initially Started by E.I DuPont. Accessible for use in many reloading programs, the IMR series of powder is dependable by reloaders all around the world. IMR 4227 Powder in inventory now will be the Magnum Pistol Powder https://milobhfez.blogars.com/27229871/imr-4227-powder