Well stated friends. I agree that diameter is constant, especially with a Cutting Edge Bullet (CEB) of solid brass or copper or when using a Punch bullet. And accuracy is of paramount importance to hit the vitals with precision. Velocity is a constantly diminishing component, but rotations per minute imparted to the bullet by that velocity is relatively constant. This apparent "drill-effect" is still a useful component.
An A-frame through the lungs can be good for bleeding-out, or causing the injured lung cavity to fill-up with blood.
I have heard that a moose "hurts all over" when shot, but that it can take a while for the lungs to fill-up with blood. I have no first-hand knowledge though. You Whitworth have tremendous experience with handgun hunting, on the other hand.
Just keep posting the truth of your experiences and I will keep reading and reacting to the postings.