This 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 rifle, this powder delivers excellent velocity and accuracy in such cartridges as the 22 Hornet and 221 Fireball.
WARNING: This product can expose you to chemicals including N-Nitrosodiphenylamine and Di-n-butyl phthalate, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to - www.P65Warnings.ca.gov.
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