From research, I see that RL-22 is one of the top recommended powders for standard length barrel 300WM, with IMR4350 right in there as well.

The Bear Hunter has a barrel with an effective length of only 21" barrel. I am reloading bullets in the 180gr range for hunting.

A couple of questions:
Do I need a faster powder in the shorter barrel?
Is RL-22 recommended, or RL-17/IMR 4350? (All three have loads for 300WM. )