Bullet and jacket were found separated in the bottom of the third jug. There was a major dent in the back of the fourth jug. I don't think that the bullet could have dented the fourth jug any more without going inside of it.
I probably wouldn't hunt specifically for elk with the 140 BT but if I had an excellent shot and knew I'd be able to slip it into the ribs I'd probably not worry it. It's too hard for me to get that perfect shot though and ABs will usually shoot just about the same.