Greg, I would not expect them to preform like a Part.

When they hit heavy bone, where do most guys aim? From many discussions and reading post here..it is the H/L region.

Where does heavy bone come into play if this is your POI?

If your aiming at the shoulder, well then you are setting yourself up for bullet failure! It is not the prefered shot on any game, you want to put in the boiler room...mess it up and you got a quick, clean...dead animal!

BT's work to a T for this if the shot is placed in boiler room and yes they blow up...but that is what they are suppose to do (so not a failure). Energy transfer, shock and massive trauma that deer is going down...but quick.

If you want a pinky in and a thumb out hole...don't shoot BT's and such. But if you want a bullet tpo put the spins on a deer sized animal, with a H/L shot..BT type bullets will deliver. I guess what I am saying is bullets are made to do certain things, blow up, retain, etc. Pick the bullet that will give you the result you want...a poor shot is never bullet failure...it is shooter failure!