At least in the two .243's I've loaded for, they both like Varget under a 75 gr v-max.
I found with bullets heavier than 75 gr, that I get better accuracy with H-4350 than with Varget, so would suggest sticking to the slower powders for 85-105 gr bullets.
I have a box of 87 gr v-max and need to work up some loads in my sons .243. I can't see them not shooting well.
