Honestly, the term "survival rifle" is so broad as to have almost no meaning. Are we talking rule of law or anarchy? Foot-mobile or vehicular support? Famous REM song or just out for the weekend trekking? In a situation where I am "surviving," contact - with anything - is going to be avoided. So something with a small signature is preferable. I don't have illusions of myself striding the wastelands at low ready with my shemagh around my neck and my LBE loaded with mags. That guy, whoever he is, is the first chump that's going to get shot. Stay out of sight, out of mind, and don't be memorable. I abhor the thought of having to "defend" myself from my once fellow countrymen should the "s" "h" the "f" - so you'll forgive me if I don't hasten the day....but that's not really what this thread is about, is it?
Answer? Suppressed Ruger 10/22 brake-down model.