Post some pics of the recovered TTSX if you can. I'm curious if they are mushroomed out nicely or if the petals are broken off. I don't see how they wouldn't pass thru, a Berger I could understand being recovered but not a Barnes. If it was a "failure" of a Barnes bullet then it would've just penciled thru, no expansion at all, and that does happen with Barnes bullets sometimes. Being recovered, to me, seems like it would've had to expand a great deal and therefore isn't a "failure". Perhaps just unlucky shot placement and didn't connect with any vitals?