The necessary, logical consequence of aiming for, and hitting a person at "center mass". In plain language, your objective is to put a bullet through their heart.
Objective: to stop them. Who teaches to aim for the heart? Is it not just center mass? You aren’t supposed to try to hit their a specific area to kill them specifically are you? In that case aim for the head....which of course is a bad idea....which is why to aim center mass...
I am not arguing, I am just trying to understand....it fascinates me. And if that logic has changed I am wondering why?