[MRM]

That sounds like good common sense. The other thing that I've heard is that if you can't escape, you're actually safer charging the attacker and trying to disable him or take the weapon. The reasoning is that it is hard to hit a moving target, and even harder to make a stopping shot at someone rushing you. Even shot, your momentum would carry you into a shooter. If you can get that close, you have an equal chance to gain control of the weapon as you wrestle for it.

At least it sounds good in theory.