IMR 4227 Smokeless Gun Powder


IMR 4227 is a magnum pistol propellant with a medium burn speed. If you’re looking for true magnum velocities and performance, this powder is the way to go.

This powder provides excellent velocity and accuracy in rifle cartridges such as the 22 Hornet and 221 Fireball.

IMR recommends that you always consult for the most accurate and up-to-date information.

Available in 1-LB and 8-LB containers.

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