[The_Mentalist]

If the time comes that I would have to source handgun ammo, the handgun would be available too. Until then, I trust the 1911 more than any of the wonder 9's. Also, given the probability that the BGs wil most likely be government forces (not necessarily military), AR variants or NATO rounds are those most likely to be carried by the BG. I always preach to stock up on what your potential enemy carries (in a non military situation) and I see our greatest threat coming from NATO or our own government. Civilian situations will eventually rise out of that, but the primary threat is what the founders thought of when they added the 2A to the bill of rights.

Eta: in most instances, I would consider 100 pounds of supplies plus the weight of the loaded weapons (not spare ammo) to be good enough to get you to safe harbor. I figure on 30 pounds of ammo, 10 pounds of clothing (a few changes), 20 total water, 25 food and then some accessories. Just a generalization but a decent base line.