Creation of IMR powders dates again about 200 yrs when the organization was initially Established by E.I DuPont. Readily available for use in lots of reloading purposes, the IMR series of powder is trustworthy by reloaders all around the imr 4227 load data world.

IMR 4227 Powder in inventory now is the Magnum Pistol Powder inside the IMR lineup. If it claims Magnum, 4227 powder is the choice for correct magnum velocities and general performance. In rifles this powder delivers outstanding imr 4227 load data velocity and accuracy in these cartridges given that the 22 Hornet and 221 Fireball.