Pete McCluskey.
Lifetime Supporter
No this is a gun! YouTube - AA-12. World's deadliest shotgun!
Years ago I was issued with a shotgun and some rather special cartridges.
The task required potential use of "non-lethal" ammunition, basically a pair of gauge size rubber balls. It was made by Fiocchi (I think) and cost about 3 times as much as regular cartridges.
Very effective in confined spaces and at short range (20 metres or less). Aim for optical mass and you get the fright factor without the legal problems.
I don't know if it's still around, but it might be worth considering in a home defence setup.
Brian, you don't need anything very exotic. #4 and a slug, repeat, etc.
Stops the intruder & gives you plenty of time to use the slug. Very effective.
Don't ask...
That'll work Brian, the 40 Cal will go through your neighbors home too..