Not a huge sample, but I've used 4 TTSX to take elk. 150 .308, 2 130 .308, 1 130 .277. All one shot kills and no recovered bullets. I did find a petal in a roast from a .308 130g started at 3000 fps. Glad I didn't break a tooth. I think the petals do break off at high impact speeds but that only helps with tissue damage. Just be careful where you bite in meat showing signs of impact!
