16 Do’s and Don’ts for Proper Ammo Storage

Daniel Whitaker

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November 14, 2025

Ammo

Storing ammunition correctly ensures safety, reliability, and long-term performance. Whether at home or in the field, proper handling prevents corrosion, misfires, and accidental damage. Good storage habits also protect investments in high-quality rounds and keep them ready when needed most. With a few simple guidelines, anyone can maintain ammunition safely for years. These do’s and don’ts outline the best ways to keep your ammo in top condition.

Do Store in a Cool, Dry Place

Bullet Stored
Brett Hondow/Pixabay

Temperature and humidity have the biggest impact on ammunition lifespan. Keeping ammo in a cool, dry location prevents corrosion and degradation. Basements or garages may not always be ideal if they experience moisture fluctuations. Consistent conditions ensure primers and powder stay stable and ready for use.

Don’t Leave Ammo in Hot Vehicles

Soldier Observing from Abandoned Vehicle
AMORIE SAM/Pexels

Heat can quickly ruin ammunition by breaking down powder and primers. Leaving rounds inside a car or truck, especially in summer, risks damaging performance or safety. Prolonged exposure to heat can also cause casing separation. Always store ammo indoors at a moderate temperature to maintain integrity.

Do Use Airtight Containers

Airtight Containers for Ammo Storage
Redneck Convent/Amazon.com

Airtight containers or ammo cans with rubber seals protect against moisture and dust. Adding silica gel packets helps absorb any remaining humidity. Proper sealing keeps out air that could tarnish brass or corrode steel casings. Organized, sealed storage ensures rounds remain reliable and clean even after years of sitting.

Don’t Store Near Chemicals

Barrels of the wastes
ShinRyu Forgers/Wikimedia Commons

Strong cleaning agents, oils, or fuels can contaminate ammunition over time. Their fumes may react with metals or primers, affecting performance. Keeping ammo separate from garages or workshops filled with chemicals avoids this issue. A dedicated shelf or cabinet for ammo storage helps maintain safe separation.

Do Label Ammo Clearly

Shelves Stocked with Ammunition in Store
Alexey K./Pexels

Labeling boxes or containers makes identification easy and prevents mix-ups between calibers. Writing down purchase dates also helps track age and rotation. Organized labeling saves time during reloading, packing, or range preparation. Simple markings make a big difference in staying consistent and safe with handling.

Don’t Mix Calibers

A Pile of Bullet Rounds
Karola G/Pexels

Mixing different calibers in one box can lead to dangerous mistakes. Accidentally loading the wrong round may cause firearm damage or injury. Storing each type in its own labeled container keeps things clear. Maintaining separation also helps with inventory control and reduces confusion during range days.

Do Rotate Old Stock

A Pile of Empty Bullet Cartridge Cases
Karola G/Pexels

Ammunition lasts for years, but it’s still smart to use older rounds first. Rotating stock ensures nothing sits too long and reduces the risk of aging powder or primers. New boxes should always go to the back of storage areas. This system keeps supplies fresh and dependable every time they’re needed.

Don’t Store Near Heat Sources

Men Roasting Sausages on Campfire
Tima Miroshnichenko/Pexels

Heaters, radiators, or fireplaces should never share space with ammunition. Prolonged exposure to warmth accelerates degradation and weakens components. Safe storage means keeping ammo away from any consistent heat source. Even small increases in temperature over time can reduce lifespan and dependability.

Do Keep Ammo Off the Floor

Close-up Image of Rifle Magazine on Ground
Safi Erneste/Pexels

Storing ammo directly on concrete floors can expose it to dampness or fluctuating temperatures. Shelves or pallets lift boxes safely and improve airflow. This small precaution helps prevent corrosion and keeps packaging intact. Elevating ammo is one of the easiest ways to extend its longevity.

Don’t Store in Plastic Bags

Bullet in Plastic Bag
r/mildlyinfuriating/Reddit

Plastic bags trap condensation and can promote corrosion, especially in humid environments. Without proper airflow, moisture buildup becomes a long-term threat. Hard containers or sealed cans are far safer options. Avoiding plastic ensures ammo remains clean, dry, and fully functional when it’s time to shoot.

Do Inspect Regularly

Man in Black Long Sleeve Shirt and Black Pants Wearing Safety Glasses
Tima Miroshnichenko/Pexels

Checking stored ammunition every few months prevents surprises. Look for signs of corrosion, discoloration, or cracked casings. Spotting problems early allows replacement before performance suffers. Regular inspection keeps the stock reliable and ensures confidence each time a round is chambered.

Don’t Handle with Bare Hands

A Person Loading Bullets in a Gun Magazine
Karola G/Pexels

Skin oils and moisture can leave residue that promotes corrosion on brass or steel. Using gloves or handling with clean, dry hands protects surfaces. This small habit adds years of shelf life to stored rounds. Proper handling maintains a professional level of care and safety.

Do Store in the Original Packaging

Person in Green Camouflage Print Pants Carrying Shotgun Shells
Lukas/Pexels

Original factory boxes protect ammo from vibration and exposure. They also make caliber identification easier. Manufacturers design packaging to preserve rounds safely, so keeping it intact reduces risk. Unless reloading, storing in original boxes keeps ammo in its most secure form.

Don’t Store Loaded Magazines Long-Term

Clip with Rounds
Terrance Barksdale/Pexels

Leaving magazines loaded for months can stress springs and affect feeding reliability. Rotating loaded magazines periodically keeps components functional. Storing ammo separately from magazines ensures both last longer. Short-term readiness is fine, but long-term storage works best when separated.

Do Keep Ammo Away from Children

Kids Playing
ymyphoto/Pixabay

Proper ammo storage always includes safety for others. Locked cabinets, safes, or ammo boxes prevent access by children or unauthorized individuals. Responsible storage protects everyone in the household. Secure containment is as essential as proper temperature or humidity control.

Don’t Ignore Expiration Dates

Container of Bullets
Terrance Barksdale/Pexels

Although ammo doesn’t spoil like food, age can still affect reliability. Powders and primers slowly degrade, leading to weak ignition or misfires. Checking manufacturer dates and cycling through old stock ensures dependable performance. Staying mindful of age keeps every shot consistent and safe.

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