If you can wait till later this year you can pickup the Kel-Tec KSG:
If you take it skeet shooting though people will think yer mental
http://www.keltecweapons.com/news/pr...c-shotgun-ksg/
AND here is an article about SG home defense ammo. Old school conventional wisdom was 00 Buck unless you're worried about over-penetration in which case use #4. But there is a convincing argument from Randy Wakeman here for #1 and #0 Buck:
http://www.chuckhawks.com/home_defense_shotgun_ammo.htm
Here is some interesting info on shotgun wounds at various distances:
http://firearmsid.com/A_distshotpatt.htm
Some pictorials of shot patterns at more than HD range with different chokes and ammo:
http://www.theboxotruth.com/docs/bot45.htm
Also some pattern testing at 7 yards and 15 yards. I don’t know what the layout in your house is like but typical HD distances at 15 – 20 feet, hallways / stairways may vary. In my old house the distance from the formal living room to the family room (where all the home electronics were) was about 35’. It used to be that you could expect buckshot pattern to open up approximately one inch for every yard away from the muzzle. When it exits the muzzle it's almost one inch in diameter. So at 10 feet it might be a 3 1/2" to 4" inch pattern. But cup / no cup, and different performance loads (flight control) change that.
So anyway these links should give you some idea of what your shot pattern would be. When you get your KSG you’ll have to shoot some patterns with it to see (he he he).
http://www.shotgunworld.com/bbs/view...191407&start=0
http://www.shotgunworld.com/bbs/view...p?f=7&t=239195
http://www.myscienceproject.org/shooting.html
Another choice might be the Benelli M4:
http://www.benelliusa.com/shotguns/benelli_m4.php
