2” sounds like a good compromise.
But if 6 shots or so doesn’t do the trick, then out comes the primary handgun (.357 semi), and wifey can grab the 38 Special revolver — if I remembered to take out the snake shot from that one, anyway... /s
Or she can reload the shotgun...
Really, while stopping power is a big consideration, I’d think most intruders faced with maybe 3 very loud, quick blasts, are gonna reconsider what they’re up against if they’re not already down.
Gotta call it a night! Will check back tomorrow afternoon. Thanks, everyone, for the input!
You also need to factor in number of intruders.
And how fast you can reload whatever you’re considering using. And reloading under extreme stress.