that graph shows me that the difference in bullets is what makes the difference not KE
I agree the difference in bullet designs makes a huge difference,I doubt you will find anywhere I dispute that.BUT,velocity has direct bearing on ke.The more velocity from the same weight bullet will yield more ke,pretty simple math.
Creating bullet yaw upon entry slows the bullet making it utilize the
POTENTIAL ke.
Saying ke has never killed an animal like you stated is a very innacurate statement.velocity and mass create ke.
So please,quit arguing for arguments sake and take time to read my post and understand them.