Ray H said:
I forget what the minimum barrel length is around here. I think its 20" or 22". with a pistal grip and a 20" barrel, thats not too unwieldy in a house.
EDIT: Real quick search, Wikipedia says the federal minimum is 18" barrel and 26" overall. It also says that the minimum barrel length only applies to "shotguns" and the government defines a shotgun as a shoulder fired weapon, so, a gun with a manufactured pistol grip wouldnt even fall under the barrel length/overall length law.
Another interesting thing on Wikipedia, It says that in countries where handguns are illegal to own, sawed off shotguns are the choice weapon of criminals. Hmmmm, Go figure.
Minima (federal) for the shotgun is 18"/28"OAL, and for rifles it's 16"/26" OAL. A "shotgun" is a longarm with a smoothbore barrel that is designed to fire multiple pellets in a single cartridge (as I recall.)
So, you can do the pistol grip thing and still be legal - as long as you've got at least 18" of barrel and 28" of gun overall.
A "sawn-off" shotgun is classified as an "Any Other Weapon" by F Troop, subject to a transfer tax (I think it's still $5,) and you have to be pre-approved by ATF and your local Chief Law Enforcement Officer having jurisdiction (Chief of Police, County Sheriff, and I think some judicial officials can be acceptable substitutes.) That will allow you to get past the minima.
Your typical home defense shotgun has 18.5" of barrel, and you can get that with a full length magazine tube (getting you something like seven or eight rounds.) I suggest #4 buckshot in a 2-3/4" shell - the pellets are fairly small. Not so small as to be useless - they're big enough to do damage - but you don't have to worry so much about secondary penetration and you'll still get a decent spread.
If you want "deterrent" value, make your first shot #12 birdshot (affectionately known as "dust" - some ungodly number of pellets to the ounce, and about as fine as sand) and your followup shots are #4 buck. #12 bird can still kill - but it's got incredible deterrent value (ever been in a sandstorm? This is worse, I'd think...) and "firing a shot across their nose" or "firing in the air as a warning" is stupid. #12 is probably the closest thing I can think of to a readily available substitute for "non-lethal" force, without having to dig up beanbag rounds, rubber baton shells, bolo shells, or sting balls (give me some time and ask nicely, and I can probably find a source for those anyhow, with a little digging.)
For home defence, even if you do find "less lethal" rounds, load only one or two of them - and the rest are full-power killing loads. If you're squeamish about killing, that gives you a comfortable buffer - and it's probably easier to defend in court.
If you manage to repel boarders using sting balls,
et al, it is important to remember to
not give chase! Once the enemy is in full retreat, the threat to your person/family/home is effectively and legally neutralised, and killing someone after that point ceases to be self defence and becomes "unlawful homicide."
N.B. If you're in an area known to have gang activity, or near such an area, I'd suggest you steel yourself to the idea that you may have to kill someone someday and skip the "less lethal" option. Gang kids can be difficult about "retribution" if you successfully repel boarders, and you may as well just whack them. If nothing else, you'll be thinning their numbers - which is a public service anyhow, y'ask me...