Production of IMR powders dates back again more than two hundred many years when the corporate was originally Started by E.I DuPont. Obtainable for use in many reloading programs, the IMR number of powder is dependable by reloaders all across the globe.

IMR 4227 Powder in stock now would be the Magnum Pistol Powder in the IMR lineup. If imr 4227 load data it says Magnum, 4227 powder would be the option for true magnum velocities and functionality. In imr 4227 rifles this powder provides outstanding velocity and accuracy in these cartridges given that the 22 Hornet and 221 Fireball.