Yeah, sorry, the bullet 'technically' failed. There should not ever be a jacket/core separation, regardless of circumstances. Unofficially, your deer might as well have been hit by a loaded freight train. One of the best kills I had was when a bullet failed, truth be told, but if that could be counted on, manufacturers wouldn't be spending so much $$$ on bonding core and jacket together so effectively, or ditching the core altogether. That being said, I think this bullet deserves another chance for sure.