Manufacture of IMR powders dates back again above two hundred yrs when the business was at first founded by E.I DuPont. Readily available for use in several reloading purposes, the IMR series of powder is trustworthy by reloaders all around the world.

IMR 4227 imr 4227 Powder in inventory now is the Magnum Pistol Powder while in the IMR lineup. If it suggests Magnum, 4227 imr 4227 load data powder will be the choice for real magnum velocities and performance. In rifles this powder delivers outstanding velocity and accuracy in these cartridges given that the 22 Hornet and 221 Fireball.