A guy ran a bunch of bullet tests on animal bones here years ago. It was a really awesome test. He used a ton of bullets and as I remember the pedals were fairly likely to shear off the ttsx on bone.
The Hornady GMX though seemed to perform pretty flawlessly and keep petals intact. The problem I've had with the GMx is I just can't get accuracy out of them. The TTSX always seems to come into an accuracy node pretty quickly. Kind of like the song goes .......you can't always get what you want!
