Your stockpile will depend upon your budget and how long you expect the "state of war" to last.  If it's a long, long time then no amount of stockpile will probably last.

 

At minimum, for pistols about 1,000 to 2,000 rounds per gun; same for rifles; for .22 LR, it would be 10 bricks of 500 ea.; and 500 rounds for shotgun in both buckshot, shot, and slugs. 

 

Store in G.I. ammo cans and in a cool, dry place.  The stuff can last indefinitely. 

 

The biggest killer for folks is budget because the price of ammo has been really climbing over the past several years.  If you know someone who reloads, and they are willing to let you "roll your own" under their supervision using your brass, powder, projectiles, and primers -- go for it.  Some handloaders will use your components and charge a flat fee for their labor (and it's certainly going to be less than over-the-counter at retail).

 

Remember: BLOAT = Buy Lots of Ammo Today.

Just one thing to add to what Colin has said but we also live in a rural area where the barter system is a workable option.  We have friends close by who raise cattle and crops and we have the ability to feed ourselves.

 

I think I might also want point out that one doesn't need a hurricane, earthquake or invasion to need to go off the grid for a while.  At the VA board meeting this week they handed out tons of information on pandemics.  The media may have forgotten about the subject now that it is old news but the danger is still one airplane ride away.  Think flu isn't a good enough reason to stay home?  Ask all the young people who died in WWI without ever leaving the US because they caught the flu.

 

In the event of such an outbreak staying home is the only way to avoid infection as the vaccine is going to be months away and hospitals will be overburdened.

 

PJ

minimum of a case for each weapon

 

and all in 50cal boxes

 

not for each caliber

 

but for each weapon

I try to keep an ample amount of ammo and some dry goods on hand. If things get really bad IE: complete breakdown of society there are plenty of deer and turkey around here to eat plus the wife's horse.