You did not quote MacPherson's actual words, because they don't contradict me. In fact, you admitted that he doesn't mention kinetic energy, so he cannot possibly have said that kinetic energy is not the source of the energy needed to deform a bullet.
So, thank you for demonstrating that you are wrong. That you don't care what I actually said. And you don't care that MacPherson did not contradict what I said.
All you care about is saying, "you didn't 'get it' and still don't 'get it'." Even though you have no basis for that statement. Your policy is insult, don't discuss.
But maybe that's your "Department"'s policy?
Why? He hasn't contradicted what I said. Just you. So I set you straight. Reporting back: it went swimmingly!