If you're looking at shotguns for HD I love my Mossberg Maverick. I got mine with the shorter barrel since that's slightly more tactical for HD. Bought it for just a little over $200 at a pawn shop. I take it skeet shooting (and still do okay even with the shorter barrel) and it sits loaded next to my bed at night. It's been great, never had any problems with it.
Well, I stopped by a pawn shop this afternoon and spotted a Maverick 88 12 ga HD shotgun. I was able to get it for $140 out the door.Ps- shotty isn't s bad idea either. A 12 or 20 in buckshot.
A 12 with 00 buck has 18 .32 caliber pellets.
The biggest you can get in 20 gauge is going to be #3 shot (I've seen #2, but pretty rare). It work just fine too.
If you get one of those, try and get a 18 inch barrel. The shorter the better.
I thought hard about 00 buckshot but I'm really worried about thin walls at the apartment and/or pellets going through windows. I'm figuring, if it's ever needed, the max distance I'll need in my 1 bdrm apt is about 15-20 feet. So I just decided on a 2 3/4" #8 shot/target, low recoil/low noise load.
I guess I'm all set now.