hi
12 ga for self defence, we should not overlook the fact that most self defence happens at close quarter, nose to nose, once the attacker is let say close to or under the length of the barrel then u would have some problems unless u know how to overcome this.
so i feel that 12 ga is good for self-defence if the attacker or such person is not kissing the barrel
. or the barrel is a short one if the law prim its it to be.
also we have to be aware of the fact that what u think is self-defence can be an attack on ur part and the law would see it as such. for example if u are attacked by someone, who throws a empty bottle at u from 20 feet away(he should join the cricket team
) and u shoot him, that may not be defined as self defence but as violent attack on ur part.
or let say:
that u wake up and find that a intruder is in ur room unarmed ie u do not see any thing in his hands and you drown ur Mossberg from under ur pillow and clubber him on the back, that would seem as self defence. however on the other hand the intruder has a knife and u pump few rounds in him that may be and i say may be classified as self defence, even in the intruder s***s barrings for few day.
in self defence the safe and simple rule should be to use minimum force.
may the force be with u (also the law)