I was at the range and a couple guys showed up with a 700 BDL Varmint in 22-250 and had loaded up a bunch of 75 Gr A-max. The few that arrived on target were sideways. They had them loaded all the way up to where the bolt was sticking and things never got better for them. A lot of early 220s have a 1:16 barrel on them and would not do as well as a 1:14 22-250. These bullets were not tipping, they were flying end over end and I doubt a six grain lighter bullet would do much better. I have seen enough 1:14 22-250s that will shoot a 55 V-max, but about as many 1:14 barrels don't.
When you look at the print on the target with a loop you can see that the bullet is tipping.