Manufacture of IMR powders dates again about 200 yrs when the business was at first founded by E.I DuPont. Accessible for use in several reloading applications, the IMR series of powder is reliable by reloaders all around the world.

IMR 4227 imr 4227 load data Powder in inventory now will be the Magnum Pistol Powder from the IMR lineup. If it says Magnum, 4227 powder may be the option for true magnum velocities and functionality. In rifles this powder provides excellent velocity and accuracy in imr 4227 load data this sort of cartridges as being the 22 Hornet and 221 Fireball.