I, like many people I think, have been building up my stores of ammo over the past few months and now I want to make sure I am storing it properly to last as long as possible. Currently, I have approx 2,000 rounds of 9mm and 1,200 rounds of .380 that I'd like to store away for "just-in-case." At the moment, all of the ammo is in it's original boxes, on a shelf in my basement. The environment is cool, however, I have some water issues occasionally in my basement, so I'm guessing the humidity level is less than ideal. I am concerned that even a small amount of ambient humidity could adversely affect the ammo. So here are my questions: 1. Can I dump all of the rounds into one of those large, plastic ammo can sand add some desicant to absorb the moisture, or does the ammo do best when stored in it's individual boxes (which take up lots of room)? 2. How long can I store factory ammo for? 3. Am I right to be concerned about humidity in a sometimes-wet basement with regard to ruining ammunition? Thanks for any help.