Well, i don't use soft points. Hornady Critical Duty / Critical Defense (yes even in 223) or Federal HST is the way to go.
"how many mags" is a personal question.... are you expecting a home invasion by 6 yutes? Well, you get a mag, you get a mag, you get a mag, everybody gets a mag! So 6 mags. But I find my belt fed AS-007 to be the right tool in this case.
I guess you better stock up on cleaning supplies too. Cleaning up after is a biatch.
Stop talking about the you- know-what. These threads are monitored.