Production of IMR powders dates again about two hundred yrs when the business was at first founded by E.I DuPont. Readily available for use in lots of reloading programs, the IMR series of powder is reliable by reloaders all around the world.
IMR 4227 Powder in stock now imr 4227 load data will be the Magnum Pistol Powder from the imr 4227 IMR lineup. If it says Magnum, 4227 powder would be the choice for correct magnum velocities and functionality. In rifles this powder provides excellent velocity and precision in these types of cartridges given that the 22 Hornet and 221 Fireball.