Cool Weapons

[ZenGum]

I just wanted to indulge in a little gun talk, here will do.

Anonymoo recently posted about certain events including this bit:

2 pit bulls broke through the door of a house... They were fighting in the living room and my .45 didn't even stop them. It took a shotgun loaded with buckshot to put them down

WTF? Isn't that exactly what the .45 was made for, high stopping power at close range?
Well, not exactly, it was more for explosive-laden Japanese on suicide runs, not vicious pit-bulls, but I would think the effect should still work.

Can anyone explain this to me? Were the dogs just that #$%&ing crazy? Am I wrong about the .45?