I have been using RL17 for 3 or 4 years now in my 300 wsm and 270 WSM.

In my Winchester mod 70 using 168 tsx's and 65 grains of RE17, win brass, Fed lg rifle mag match primers I am getting right at 3100 fps chrony'd in the 50 degree range.

I've had real good luck with it in terms of accuracy and consistency.