Based on my experience with RL17 in 300 WSM the extra speed wasn't worth the loss of accuracy. That experience was the reason for asking.
But at the same time I've read of others using both RL19 and RL22 in 30-06 with heavy bullets. Some guys into long range target shooting who need the accuracy have been pleased. I don't recall any comments about using it in 300 WSM. But on paper it appears RL19 or RL22 should give about 50fps more in 30-06, 100+ fps more in 300WSM.
