Ranger Green Condition 1 #184 case open

How to Store Ammo Long Term: Ammo Cans vs Waterproof Hard Cases

Short answerStore ammo somewhere cool, dry, and stable, in a sealed container with a rubber gasket and a desiccant pack. Humidity and temperature swings are what ruin ammunition, not age. A surplus steel ammo can works for bulk storage. A waterproof hard case with a pressure valve works better for ammo that travels, and it will not rust.
Ammo is expensive and it is not always on the shelf when you need it. Most people who buy in bulk store it in the cardboard it came in, in a garage that swings 60 degrees between January and July. That is how good ammo turns into corroded brass.
Our pick

Condition 1 #184 11" Small Waterproof Case

Ranger Green Condition 1 #184 case open and empty

IP67 sealed, automatic pressure valve, padlock holes, and a resin shell that will not rust. 277 cubic inches inside for boxed ammo, magazines, and a desiccant pack.

$69.99, Red or Ranger Green.

Shop the #184 →

What is the best way to store ammo long term?

Cool, dry, dark, and sealed. Moisture is the enemy. It corrodes brass, and it can get into primers and powder over time.

Temperature swings are the second enemy. Every hot day and cold night pulls humid air in and out of anything that is not sealed.

Do Why
Use a container with a rubber gasket Keeps humid air out
Add a desiccant pack and swap it yearly Soaks up the moisture that gets in when you open it
Store inside the house, not the garage or shed Stable temperature, less condensation
Keep it off concrete floors Concrete wicks moisture and stays cold
Label by caliber and date bought Shoot the oldest first
Lock it Keeps it away from kids and visitors

Are ammo cans good for storing ammo?

Yes, if the gasket is good. Military surplus steel ammo cans have a rubber seal and a clamping lid, and they are cheap and stackable. Check the gasket before you trust one. A cracked or flattened seal does nothing.

The downsides are weight and rust. Steel cans get heavy fast, and scratched paint in a damp space starts to rust. They also have no pressure valve, so they can be hard to open after a temperature change.

Ammo can or waterproof hard case: which is better?

Ammo cans for bulk ammo that sits on a shelf. A waterproof hard case for ammo that moves: to the range, to deer camp, or in the truck.

Steel ammo can Condition 1 hard case
Seal Rubber gasket, if it is in good shape Sealed lid, IP67 rated
Rust Can rust when scratched or damp Resin shell, will not rust
Pressure valve No Automatic
Organization One open box Pluckable foam or padded dividers
Locking Usually not Padlock holes, TSA compliant latches
Cost Low Higher, with a lifetime warranty from Condition 1

Plenty of people use both. Cans in the closet for the bulk supply, a hard case for the range kit.

In the store

Condition 1 #179 16" Waterproof Case

Black Condition 1 #179 waterproof case closed

What we sell. A 16 inch IP67 case, 918 cubic inches inside, with padded dividers, a lid organizer, and a rubberized handle.

Why it helps you. Room for boxed ammo, magazines, ear and eye protection, and a cleaning kit. Dividers keep it from sliding around in the truck.

How to buy. $189.99, one time purchase.

Shop the #179 →

How long does ammo last in storage?

Decades, if it is stored well. Ammunition does not have a real expiration date. What shortens its life is moisture, heat, and corrosion.

Inspect old ammo before you shoot it. Green corrosion, dented cases, or loose bullets mean it goes in the disposal pile, not the gun.

Should you store ammo in the original box?

Yes, inside a sealed container. The box keeps rounds from rattling and keeps the lot information with the ammo. The sealed container keeps out the moisture the cardboard cannot.

Red Condition 1 #184 case open with pluckable foam
Pluck the foam to fit boxes and magazines so nothing shifts in transit.
For the range day

Pack the coffee too

G.O.O.D. Kit with AeroPress Go, ARC tumbler, and two bags of Spectre coffee

What we sell. The G.O.O.D. Kit: an AeroPress Go, an insulated 20 oz ARC tumbler, and two bags of Spectre.

Why it helps you. Long range days start early. A hot cup that stays hot for 3+ hours beats whatever the gas station had.

How to buy. $99.99. Coffee subscriptions take 30% off the first order automatically, no code.

Shop the G.O.O.D. Kit →

Questions people actually ask

What is the best way to store ammunition?

In its original box, inside a sealed container with a rubber gasket and a desiccant pack, kept somewhere cool, dry, and stable indoors. Avoid garages, sheds, and concrete floors.

Can ammo go bad?

Stored well, it lasts decades. Moisture and heat are what ruin it. Inspect older ammo for corrosion, dents, or loose bullets before you shoot it.

Are ammo cans waterproof?

A steel ammo can with a good rubber gasket is water resistant and keeps out humid air. Check the seal. A cracked gasket does nothing. An IP67 hard case is rated to survive submersion.

Is it OK to store ammo in a garage?

It is not ideal. Garages swing hot and cold, which pulls moisture into anything that is not sealed. Indoors, in a sealed container, is better.

How much ammo fits in a small hard case?

It depends on caliber and box size. The Condition 1 #184 has 277 cubic inches inside, enough for several boxes of handgun ammo and a few magazines with room for a desiccant pack.

Storing ammo is a supply problem, and supply problems have simple answers: keep it dry, keep it organized, and know what you have. ARC is a small roaster in Charlottesville run by a twenty year Army logistics officer. We roast coffee, and we carry the cases that keep the rest of your kit squared away.

OUR RETAIL STORE

705 Dale Ave, Unit E
Charlottesville, VA 22903

Mon - Fri, 8:30am - 2:30pm
Saturday, Closed
Sunday, Closed

The Aerial Resupply Coffee Roastery Charlottesville Virginia Whole Bean ground and kcup premium coffee

Visit the Roastery

Stop by our roastery in Charlottesville to see where the mission begins. Grab a bag, talk coffee, and watch veteran-owned craftsmanship in action.

📍 705 Dale Ave, Unit E — Charlottesville, VA 22903
⏰ Mon–Fri: 830am – 230pm