On Br I do not know, on my 6creedmoor 7.5 twist, it hated them, and loves 105 Hybrids. I believe it is like everything else in guns and gals, some click some do not. But try them, I have a 6.5wsm found the 153 A tips to be its sweet spot.Has anyone out there tried an A Tip 110 grain in an 8” twist 6BR? If so, how far out did you shoot and any stability issues?