I got talked into buying a 12 gauge pump. When I noticed that no one fell down dead at the sound of the thing, I decided to see how useful a Winchester 1300 would be around the house (shotty? Gotz youse a Deagle wit dat?). Totally inappropriate for the layout of my house, doors all open the wrong way, halls are too narrow, etc.

So my 3-gun loadout would be:
(just to be contrary) Lever action .30-30. Old reliable.
.22lr rifle. Pump/lever/bolt.
I like to say 1911 but I think a .357 revolver would work better.
Yeah, higher round capacity and quick, easy reloads with an auto. I carry a 1911, but if SHTF I'm either keeping track of magazines or worrying about damage to the 3 or 4 I can carry easily.

I gave that almost 5 minutes of deep thought, so I'm sure it'll be picked apart pretty quick