It's always been my contention that the best home self-defense weapon is a twelve gauge with double "0"s, and I've never seen anything that would make me change my mind.
It will open doors and walls without the need to find out who or what is behind them.
It sounds more exotic to say that you plugged an intruder with your handgun with three shots between the eyes, but with a twelve gauge and double "0"s he won't have any eyes left or a place to put them.
I've been looking at a sawed off ten gauge auto for that purpose.
I'll bring stubby to the shoot..