I have come to the belief that the Ballistic Tip hit bone and failed to penetrate.
Depending on the particular bullet caliber & weight that is exactly right. I had a 180 BT from a 300 Wby disintegrate at the onside point of impact on a 285# Axis buck. Never dreamed in 100 years the bullet would have done so. But it did. I have not hunted with BT's since then, 1998.
.....on the shot I took, I think a TTSX would have killed the bear cleanly.
Don't count on it. Cleanly, being the operative word to my saying so.
