Copied for the Firearms Training Academy Site:
Proper Care and Storage of Ammunition
Ammunition should ideally be stored in a cool dry environment where there are no unusual variations in temperature and humidity. Extreme high temperatures, such as those found in the trunk of a car or an attic should be avoided for long term storage. We also recommend that you store the ammunition in it's original carton to aid you in identifying the ammunition at a later date. Once you become familiar enough with the different calibers and brands this wouldn't be necessary. If you desire to store a larger quantity of ammunition you may wish to investigate the commercial ammunition cans. Always wipe your fingerprints off the cartridges. No this is not for some devious reasons, the Acids, salts and other chemicals contained in fingerprints can cause corrosion which could affect the reliability of the cartridge.
