I shoot 40gr v-maxs with 37.5gr of varget out of my R700 1:14 twist heavy barrel. federal cases and federal primers. I get less than 1/2 moa and gophers are mostly in pieces when they are hit, even at 250 yards.
I would really like to find some nosler 64gr bsb to try out for deer. Nosler says they will stabilize in 1:14 twist.