Statistical outliers. How about that guy in Tyler Texas, Mark Wilson, who came across a crazy gunman shooting up a court house, and threw down on him with his .45? BG was wearing double flak jackets, and Wilson accidentally chose his getaway vehicle for cover. Bad situation.
I guess it would make sense to shoot COM if you would miss otherwise, or if missing meant hitting an unsafe backstop.
Also I'd like to request more details or sources on this phenomena of the head bobbing around. I watched people's heads where I shoot and even on the move they're pretty linear targets. Might have something to do with wanting to be able to see. But people continue to insist the head bobs around like a paint-shaker, making it impossible to hit. Would it be out of line to request someone back their assertions up? Or else it's a case of someone somewhere said it in the internet so it must be true...
Maybe someone can find a youtube video of someone doing something that illustrates the head bobbing?
I know it's the internet, you can't expect to find truth or even people who cite sources to back up their claims unless you're on special forums, but c'mon let's bring this forum up to those 'special' standards.
*Here, for example, is a video of people doing all sorts of movements. You'll notice their heads are quite linear in movement, especially regarding the rest of their bodies. It might be because heads aren't meant to be shaken around. It might also be attributed to
inertia and the head having only 1 connecting point to a the body.
http://www.youtube.com/watch?v=6qhgIdP3l3I&feature=related
** Also note that the head is a target that does not vary in size much depending on perspective. If a skinny kid turns sideways your COM shot just got harder, and your 10 COM hit-pattern turns into an 8-miss lawsuit.