I can tell you from personal experience that the Ballistic tips are great in calibers of .270 & above, but anything below that has proven for me to be marginal on deer sized game. I bought a .260 Remington 2 years ago and since I had been shooting BT ammo in my 300 Win Mag, I shot a 120 grain Remingon Premier BT rounds. The 1st deer I shot dropped in his tracks with a neck shot but the bullet didn't come out. On the 2nd deer I shot, I hit it right behnd the shoulder at 125 yards and I did not recover the deer until a couple days later. There was no blood trail to follow. After finding the deer, the bullet never exited the body cavity but literally "exploded and fragmented inside the deer, thus the lack of a blood trail. The entrance hole was not that large either. On the 3rd deer I shot with it, I hit a 7 point buck right behind the 3rd rib on a quartering away shot at 75 yards. There was a small amount of blood where I hit him and a little blood where I found him about 100 yards away, there was not a drop between those 2 points. Keep in mind, these are Texas hill country deer weighing about 100# field dressed so they are not large animals. Since then, I have switched to 125 grain Nosler Partitions with excellent performance.