Mudcat
Gold $$ Contributor
wasnt there an article posted on one of the forums about how nasa stored their gun powder in large canisters in out outdoor storage unit for long periods of time? I know I have had ammo stored in outside containers for years and it definitely shoots fine for blasting, but cant say I have shot precision ammo stored that way. M2ball seems to handle such storage perfectly fine. 
definitely a proponent of storage in a climate controlled unit, but thats not always feasible.

definitely a proponent of storage in a climate controlled unit, but thats not always feasible.