Manufacture of IMR powders dates again about 200 yrs when the organization was at first founded by E.I DuPont. Readily available for use in lots of reloading purposes, the IMR series of powder is trustworthy by reloaders all around the world.
IMR 4227 Powder in inventory now is the Magnum Pistol imr 4227 load data Powder while in the IMR lineup. If it suggests Magnum, 4227 powder is the imr 4227 load data choice for real magnum velocities and performance. In rifles this powder delivers outstanding velocity and accuracy in these cartridges as the 22 Hornet and 221 Fireball.