David, I'm not going to go round and round with you. In my tests mouse gun calibers fired from the shorter barreled weapons are just not capable of penetrating similar objects to what was easily penetrated by heavier calibers. That means my uncle wouldn't have been able to get his hit/hits and my friend would have had to fire more rounds and hope for the best. To you that may not constitute a fact or justify the carrying of heavier but for me it does.
I have been taught that in a shoot out the one who hits first and hardest usually wins. I have seen that the potential to miss increases with the pressure of a shoot out. I realize that good combat hits are going to be difficult to achieve on a moving shooting target. I understand that penetration angles might not be ideal given the BG's movement. All of these have led me to the conclusion that I may not get the best angle or greatest of placement in an actual shootout. Relying on the puniest of cartridges, ones virtually incapable of smashing bone and continuing into the vitals, is just not for me.
You feel good with a mouse and thats fine. I'll argue my points you argue yours. I do agree with you that in most of the already small odds of needing a gun a mouse will work. Its when things get ugly (actually having to use the gun) that I disagree with a mouse being adequate. It simply doesn't have what is needed to compete with the heavier calibers. If I'm gonna carry for the unlikely I might as well be ready with the biggest and best that I can conceal and control.