Originally Posted by Joseph Bowden
Have only been reloading for two years. The books that I have either recommend IMR 4350 or IMR 4381 for .300 win mag. of the two the 4350 seems to be working best for me. Tell me more about RL-22.
rl22 is usually at a full case or slightly compressed with most bullet weights in the 300win. I use it with 165 grain hornady pills in my lh browning a-bolt ss boss and get about 3250 fps muzzle velocity with 3 shot cloverleafs and ten shots rapid fire into an inch. Yep it's a bit slower if cold and a bit faster when warm, but it's predictable and being double base has higher energy content per weight than single base so it'll usually net higher velocity per pressure.