Creation of IMR powders dates back around 200 yrs when the organization was originally Started by E.I DuPont. Obtainable for use in many reloading applications, the IMR series of powder is reliable by reloaders all around the world.

IMR 4227 Powder in inventory now is the Magnum Pistol Powder while in the IMR lineup. If it claims Magnum, 4227 powder is the choice for correct magnum velocities and effectiveness. In rifles this powder imr 4227 load data provides excellent velocity and accuracy in this kind of cartridges since the imr 4227 load data 22 Hornet and 221 Fireball.