I store mine in ammo cans. One trick I have found is if you ever have the store bought beef jerky there is a lil pouch in them. Most people think it is a descciant. But it is actually an Oxygen eater. These you can toss in your ammo cans and they will remove the Oxygen in the can. Very good for keeping ammo longer. Another thing is using dessi packs in the cans. Dessicants remove humidity and moisture. Just be sure to take em out and bake em every now and then to recharge them. And finally. You should examine all your ammo cans. There is a rubber seal that keeps the contents high and dry. If this seal is broken damaged or missing you should mark that can and use it for other storage. This means your ammo will not be kept dry and humidity could condense in the can and cause corrosion. Any other good ideas?