I use 00 buck, it has less penetration then any of the main hand gun calibers if I recall correctly it will go through 7 sheets of drywall were 9mm .40 .45 will go through about 12.
my issue is anything that wont go through your wall probably wont have the amount of stopping power you would want
As usual, Andy hit the nail on the head. I do have a 12 ga (loaded with 00 Hornady TAP), but the nearest and quickest piece of kit I have is my 1911.
Cheers!
Mark
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