I found a sweet spot with IMR4350/RL19 at just over 3,000fps with 210 Partitions and 200 BT. The BT would regularly shoot one whole groups (I’d expect AB to do the same). I killed a bunch of deer and elk with the 210s and performance was outstanding. The BT of the day were way soft for anything but deer, even at long range. I’d guess either the 210 or 200AB would be great for an all around the load. Personally, I never found the need for anything heavier than 210s for elk. I can only recall a couple of instances where they didn’t exit, even out 450yds. I also never had an instance when an elk was not visibly rocked at impact. Only thing I think is more effective is a 340wby shooting 210s at 3250:)