(by just blindly firing a lot) the way the military encourages guys to do. The lone rifleman CAN'T "achieve fire superiority" or "pin down" anybody, or 'recon by fire", etc. So just forget about firing 50-100 rds for every hit you get. If you dont get some sort of hit with every other rd, and a GOOD hit with 1/4 of your rds, you aint gonna make it, regardless of how many rds you have, or what load you use. Missing a lot just ENCOURAGES enemies who know the real score. If shtf in the US, you wont be up against ignorant savages with AK's (after the first week or so, anyway) THAT type will be long dead.The looters who remain will know to use cover, darkness, mobilty, Molotov cocktails, suppressors, and so on, and many will be quite capable of hitting you from 1/4 mile, or a bit further. They will be 10-20x as dangerous as ******** or gooks ever thought of being. ONE such man can easily teach the rest of his gang what's what, and in a few weeks, the survivors will all KNOW that he's right.