[The Duke]

Or, better yet, trap it and grill it. Trapping is silent and requires less time and energy, and doesn't draw so much attention. You can find any size/type of trap you want at "Tractor Supply Company". (And don't be surprised if game gets real scarce, real fast).

Regarding sanitizing water, everyone would be well advised to research the use of calcium hypochlorite for that purpose. Boiling is best, but may become impractical and dangerous.

But, most important of all is MINDSET. Don't plan to "hole up"...plan on taking and keeping geographical areas. If not, when you finally do emerge from your spider hole you're going to find yourself in "Somalia".

[Doomonyou]

Or, better yet, trap it and grill it.

Well I said "Kill" not "shoot", but I catch your drift. : )

Good points on the rest.