Creation of IMR powders dates back around 200 many years when the corporation was at first Started by E.I DuPont. Readily available for use in several reloading programs, the IMR number of powder is reliable by reloaders all around the world.

IMR 4227 imr 4227 Powder in inventory now is the Magnum Pistol Powder in the IMR lineup. If it states Magnum, 4227 powder is the choice for real magnum velocities and performance. In rifles this powder delivers imr 4227 load data exceptional velocity and precision in these types of cartridges because the 22 Hornet and 221 Fireball.