You're forgetting a variable in there. If the defender has proper training, military or otherwise, even under duress, the defender will be able to correctly identify key points to shoot. If you're in the military, well infantry at least, it's nearly habit to do a failure drill, or two in the chest one in the head or groin. I have the misfortune of ALWAYS doing that. Even online. It's gay. Now you're possibly wondering why two in the chest? Simple, my friends. It's a biomechanic called vascular decompression. Now, I can't quite remember what all goes into this little biomechanic, but I know it has to do with the rapidity with which wounds start to close, possibly to maximize blood loss before sending a third round into the groin if you're going for disabling. Otherwise, the two rounds serve to shock the target for the time necessary to line up a shot on the T-box, the area in the face through which a bullet will pass through the brain stem and ending bodily function. In hindsight, I have no idea why I went on a rant... 1911 for the motherfucking win.