RL 17 sucked for me, I thought I had a great load 3/4" at 200 yards, I went to test it at 575 yards and that "great load" turned into over 5" of vertical even worse is it was either 1 high and 2 low or the other way around. Basically a miss everytime on a coyote at that range. switched to 4831 sc and vertical went to less than 2" and sometimes as little as .75 accuracy went up to sub .5 at 200 yards. I saw pretty big swings in temp sensitivity as well It was nothing to see 100 fps