So last year, I built a 6.5 grendel. Due to the ammo shortage I was only able to find American eagle 120 grain OTM which was extremely accurate. I shot 1 whitetail at about 300 yards. It obliterated it's shoulder and the internal damage was minimal at best. I couldn't even find a hole in the lungs or heart. Not sure how it even died. Second one I shot was at 70 yards, lungs were jello and the exit wound was larger than a silver dollar. I know people hunt with OTM and I did take 2 deer with it, but I don't have alot of confidence in the round at all. For my creedmoor, I'd like to start reloading, but I will be buying factory ammo for it this year. Any suggestions on what I should use? I'll have opportunity to take whitetail from 10 yards all the way out to about 400. Also, any explanation as to why that happened with the 300 yard shot? Was there just not enough kinetic energy? Thanks