I haven't hunted much yet with the Federal TBT, but my .308 and 7mm-08 both sure shoot it well. I shot a bear a few days ago with my .308 using a 165gn Fed TBT. It was about a 250 yard shot, not a huge bear, but the bullet did great. Expanded, passed through, and put the bear down fast. I didn't hit any large bones. Just ribs. I for one really like this bullets design, and I plan on hunting elk in the fall with the same load I used on the bear.