I store my empties in my non climate controlled garage.This is a bummer on the steel washed euro type hulls. With the newer primers being made cheaper and cheaper I have a rusting / corrosion issue with primers as well. True brass AA hulls don't rust. So now if I don't reload my AA hulls right away I run them thru my old Mec case conditioner and it resizes and de primes them for storage. Having 10,000 of each gauge I shoot means at least 4 seasons or more will go by before I load them again. I reload 410 bore 28,20,12 gauge so this is better for me.