Should be a litany of posters along pretty soon to tell you how their Barnes didnt open up...just 'penciled on through...' and the animal got away.
Personally I've only ever recovered 3 Barnes TTSX ( out of 60+ kills with them) and they all looked like your pic. I'm a BIG believer in them, particularly if the rank and file tell you your gun isn't big enough for your quarry . ( i.e. you shouldn't hunt big mule deer bucks with a .243...) They are a game changer.
