Snakeye> You should read accounds and documentaries of WWII concentration camps. Hell, the Nazis (I believe I am right to call them such in this situation) even documented it themselves. It was more "efficiant" to kill two or three people with one shot. There is even video footage of them doing it. Albight it wasn't from pistols. Many history programs (some have been on PBS) have given accounts of it, and the use was quite widespread.
BTW, when you starve, and I mean actually starve, your body starts to feed on itself. Disolving organs and bones for energy. This in turn weakens the whole body, making it frail. Easy to shoot through a couple of the that way.
And If I am becoming offensive, I don't mean to. I am just stating what has happened. We must remember the past, lest we repeat it. (Sadly, it already has. Many times)