Manufacture of IMR powders dates back again over two hundred yrs when the corporate was initially Launched by E.I DuPont. Available for use in lots of reloading programs, the IMR number of powder is reliable by reloaders all around the world.

IMR 4227 Powder in inventory now may be the Magnum Pistol Powder inside the imr 4227 load data IMR lineup. If it says Magnum, 4227 powder could be the option for real magnum velocities and effectiveness. In rifles this powder provides superb velocity and accuracy in these types imr 4227 load data of cartridges since the 22 Hornet and 221 Fireball.