The number one choice for the new short magnums, both Remington and Winchester versions. For magnums with light to medium bullet weights, IMR 4350 is the best choice.
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.