The IMR 4350 Propellant - 1lb / 454g is a smokeless, medium to slow burn rate propellant, remaining the number one choice for the new short magnums (both Remington and Winchester versions)
This propellant is designed for uniform consistency and for use with lightweight or medium-weight bullets.
Consult www.IMRReloading.com for the most accurate, up-to-date load data.