Manufacture of IMR powders dates again about two hundred many years when the corporation was originally Started by E.I DuPont. Obtainable for use in many reloading programs, the IMR number of powder is dependable by reloaders all around the world.

IMR 4227 Powder in stock now would be the imr 4227 Magnum Pistol Powder in the IMR lineup. If it says Magnum, 4227 powder would be the option for legitimate magnum velocities and efficiency. In rifles this powder provides great velocity and precision in such cartridges because the 22 Hornet and imr 4227 221 Fireball.