How to Store Ammunition So It Lasts

Buying in bulk saves money, but only if the ammo still fires when you need it. Modern factory ammunition can stay reliable for a long time when it’s stored well. Here are the habits that matter.

Keep it cool and stable

Heat and big temperature swings are hard on powder and primers. A closet inside the house usually beats a garage, attic or shed. Never leave ammo in a hot vehicle for long stretches, especially in a Texas summer.

Keep it dry

Moisture leads to corrosion on cases and can affect primers. Store ammo in sealed containers with a rubber gasket, like a standard ammo can, and toss in a desiccant pack. Swap or recharge desiccant when it’s saturated.

Keep it labeled

Leave ammo in its original box inside the can, or label each container with the caliber, load and date you bought it. Mixing calibers is how 300 BLK ends up next to 5.56, and that’s a mistake you don’t want to make.

Rotate your stock

Shoot the oldest boxes first. A simple “first in, first out” rotation keeps your supply fresh and gives you a reason to get to the range.

Keep it away from chemicals

Don’t store ammo on the same shelf as solvents, oils or cleaning sprays. Some can seep into primers over time.

Keep it secure

Store ammunition where children and unauthorized people can’t get to it, and follow your state and local laws on storage. A locking cabinet or safe is a good investment.

Inspect before you shoot

Before a range trip, look over your rounds. Set aside anything with heavy corrosion, dents, loose bullets or damaged primers instead of firing it.

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