Creation of IMR powders dates back around 200 years when the corporate was originally Started by E.I DuPont. Available for use in lots of reloading applications, the IMR series of powder is reliable by reloaders all around the world. IMR 4227 Powder in stock now would be the Magnum Pistol https://collingrrni.tblogz.com/imr-4227-powder-42014599