two
Whilst SG is a devastating cartridge the only use I can think of for it is blowing hinges off doors at point blank range!!!
Point it at anything live more than about 15-20 feet away and the odds are you will probably miss!
I have never been in a position where I thought SG was the cartridge of choice, and to be honest I don't know why I bother to carry around 3 in the belt, but each bit of land is different and each shot is different so who knows!!! Others may find more uses for it than me!!
i though SG meant shotgun although the foxes i shot off the back of a t