Both will probably feed better. The question is whether the AR is accurate enough to make it worth spending the dinero on either. In my experience, the VM's are the best value, but the BK's have better final accuracy. Not much, but noticeable in a good rifle. But the tips are not an issue in the way you ask. The real question is whether the rifle can capitalize on the goodness from either compared to a humdrum 55 softpoint.
I guess that's why we handload -- TO FIND OUT!
Have fun.
