Shootall, you want to talk of rack issue M16s not being good for much past 3-400 yds but the M14s being used ARE highly accurized. As to modern manufacturing being improved you are forgetting; the M14 are not NEW; they are 50+ yrs old. You will not give the M16 the benefit of the same such accurization? "many not sharing parts interchangability" I am having a hard time thinking of what AR parts those could be. there are some custom trigger groups, and a new piston/gas system, but AR parts are made fit all ARs. that is the attraction of the AR. it is the small block chevy of the rifle world. parts may need fitting but very little and the tools needed are small and easily carried.
am I a "sunny day survivalist"? well,,,,,,,,,,yes. I live in Phoenix, AZ. "rocking your boat" LOL Rivers in AZ seldom have water in them. When they do it is on the 5 o'clock news. the likelihood of crossing an ice swollen river is non-existant in the Sonora desert. also, in an emergency there is no 'bugging out' of metro Phoenix. The few roads out of the county are jammed with traffic on a normal day. In a SHTF situation it will be gridlock. It is gridlock out of town on any holiday weekend. All I can do is hunker down. Fortunately I live in a concrete walled house. Since my partners' daughter is here there is no relocating beforehand. I prepare for what could happen, not what might happen. It might snow in Phoenix but it happens so seldom it is not something to spend a lot of time on. Not worth buying mukluks.
Regarding looters: I saw looters stealing tvs and dvds but I saw no one looking for small parts in the back of a gunshop. I would look there, after things quiet down, but not while the zombies are roaming the streets. But then, I am not sure what I would be looking for since I have what I need. Perhaps items to barter.
You belittle the need for "battle" preparations but it is the feral mob that is the most danger. Not starving if you don't get that deer at 600yds. If I prepare for every possibility I will need a diesel tractor and 50ft. trailer for everything I might need.
The idea of carrying your "bugout bag" and a bolt rifle is highly romanticized, and totally impractical. If you are reduced to such a state you are on the run, hiding,no support. In short,a casualty. To survive TEOTWAWKI you must either be well prepared where you are or move to where you want to be. There will not be any walking to your retreat. You will die.
It all depends on what causes TEOTWAWKI. If it is worsening world politics or widening war, leave now. If it is a nuclear attack, or wide spread biological disaster there will be no reloacating.
Don't expect that running to your hunt cabin will make you welcome in the community. You are just another stranger running from the big city. Move to where you want to be. Get established in the community. BE someone YOU would want next door.