IMR 4227 Smokeless Powder
Production of IMR powders dates back over 200 years when the company was
originally founded by E.I DuPont. Available for use in many reloading
applications, the IMR series of powder is trusted by reloaders all
across the globe.
IMR 4227 is the Magnum Pistol Powder in the IMR lineup. If it says Magnum, IMR 4227 is the choice for true magnum velocities and performance. In rifles this powder delivers excellent velocity and accuracy in such cartridges as the 22 Hornet and 221 Fireball.