When I was sighting in my rifle, believe it or not my best groups out of my brand new kimber 7mm 08 were the cheap PPU bullets that I used to break in the barrel. After breaking in the barrel, I tried Hornady Superperformance, Hornady whitetail and Winchester fusion all 139 or 140 grain. All so tried 175 grain handloads which had the largest group..
I settled on the Hornady Whitetail because they were the second best and that is what I used to sight my scope in.