How long should you keep ammo in storage? Is there a time limit?Or does it not matter
That is a very nebulas question. much of that depends on how the ammo is stored. I have shot some 20 year old ammo that was stored in a sealed container that worked just fine, I have also seen some brass ammo just a year or two old, starting to turn green from moisture, that I wouldn’t consider putting in a firearm. Properly stored in a cool dry place, a good quality ammo should be safe for at least a year. I generally order 1,000 rounds at a time for each caliber handgun I have and will go through that in six months to a year with no problems. I believe the storage is they key, cool dry place.