Does anyone frequenting this forum own and use one of those a10-a2 rifles, and care to give a range report on it? I saw that same rifle once before and was curious. If you've used yours M110, I'd like to hear about it, but PM might be better.
Looks like it has the portability (small, not light, 8.3 lbs) factor going for it, maybe it's durable (it's not surplus, it's 'brand new'). I hear even SKS guys have random success driving tacks at 100 yards with 7.62X39.
But armoredman raised a good point. If the SHTF and you're scrounging in a post apocalyptic situation, you might not have a choice of ammo. What weapon do you choose? The one that offers the most available in your area prior to the event?
.22LR!
If you were in Eastern Europe, whatever they have in abundance over there. If you're in the Middle East, maybe it's something different. I don't know. If you're Mad Max beyond Thunderdome, lots of fuel (he never had much luck with firearms . . .)
It might be better to have what you can reload. Powder might be more available than factory-made cartridges, and you could customize your shots if you had skill. Want that .30-30 to kill and eat a rabbit one day? Roll a 110 grain bullet and smaller powder charge. Want to bust some bear chops that have been eating your scrawny, radioactive, mutant dogs? Roll a .44 Magnum with a 270 grain bullet and wait in the doghouse for him.
Hard to tell in a situation like that without considering the area first. If it was in California, the thing I'd want most is a universal key for all the gun locks.
One person in the thread mentioned a shotgun, and that totally slipped my mind. Excellent choice. .410, 20, 16, 12 gauge, with a few oddballs, a couple of different lengths, plenty of that lying around, and it's not even locked up in the stores behind a sales counter (post-apocalyptically thinking, of course). Shotguns and their shells would be plentiful, even in other countries I imagine. 12 gauge will take some large game with slugs at short ranges, medium to small game with different loads and chokes. Shotguns are a proven 'manstopper' at short ranges, and wound at longer ranges (no ambulance, so your target can pick the buckshot out himself). They make durable (marine) versions, "combat" shotguns, tube fed for sustained rate of fire, oh it gets better sounding all the time! Shotguns are as cheap and common as you'll find, I imagine. Find a single shot or other type lying around, your ammo probably feeds and fires. It's not romantic, but neither is the prospect of wiping your butt with leaves and grass for months on end. I'd rather scavenge toilet paper!
jmm