Using Savages I have found IMR/RE19/RE15 work the best, using 150gr-180gr bullets. Never liked anything smaller than 150gr for whitetail deer, I guess just as long as the 125gr bullet is not a varmint bullet, or it may not hold up on a deers shoulder if hit, just a heads up. The 308 win really does the best with 150gr bullets on big game as far as I have seen over the years.
But I guess with the newer well construted bullets of today, things have changed, of course I hunt wooded area's, not open flat sky country, then I could see why your using such a small bullet, need to reachout and touch something far away. Aim small hit small. RAMbo.