6 Best Ammo Storage Container: With Buyers Guide

by Dave Chesson

April 19, 2024

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Over the years, I’ve grown my firearm collection, which meant I needed plenty of ammo storage containers to accommodate various types of ammo. It was quite a task finding options that met all my needs. So, I’ve compiled a guide with my top picks for the best ammo container and factors to consider if you’re looking for a solid storage solution.

Best Ammo Storage Containers

What Is an Ammo Storage Container?

An ammunition storage container, also known as an ammo box or ammo can, is a container designed for safe and secure storage of ammunition. These containers are typically made to be sturdy, water-resistant, and sometimes even airtight to protect the ammunition from moisture, dust, and other environmental factors.

How I Chose the Best Ammo Storage Container

As a former Navy officer, I’ve extensively used many firearms and ammo storage containers. With years of experience, I’ve learned how to properly store ammunition using well-chosen containers. Now, I want to share my knowledge to help others find the best ammo storage containers.

In this list, I’ve chosen containers based on factors like storage, durability, portability, and security. I’ve also gathered inputs from my shooting buddies for a diverse selection. I understand that choosing an ammo storage container is personal, so I’ve categorized them based on their best uses to cater to everyone’s needs. Additionally, I’ve included a buyer’s guide to help you make an informed choice

Gun University’s Choices of the Best Ammo Storage Containers

Best Ammo Storage Containers

MTM AC4C Ammo Crate (4-Can)
  • Stackable
  • Multi-ammo storage
  • Individually lockable and portable cans
Buy on Amazon
Best budget

Plano Field Box

Plano Field Box
  • Portable
  • Lightweight and compact
  • Water-resistant seal
Buy on Amazon
Best Military Grade

Solid Tactical Metal Ammo Can

Solid Tactical Metal Ammo Can
  • Airtight and watertight
  • Stackable
  • Includes a desiccant packet
  • Sturdy
Buy on Amazon
Redneck Convent Metal Ammo Case
  • Waterproof
  • Heavy duty handle
  • Lightweight and easy to carry
  • Camouflage color
Buy on Amazon
MTM ACR8-72 Ammo Crate Utility Box
  • Stackable
  • Airtight
  • Can hold up to 85 pounds of gear
Buy on Amazon
Sheffield 12629 Field Box
  • Airtight
  • Secure
  • Stackable and portable
  • Ergonomic carrying handle
Buy on Amazon

Best Ammo Storage Containers Spec Comparison

Below is a table of the specifications for ammo storage containers. Click the name of the item to jump to that review.

Ammo Storage ConainerMaterialSealClosure TypeCaliber
MTM AC4C Ammo Crate (4-Can)PolypropyleneO-ring seal LatchMulti-caliber
Plano Field BoxPlasticO-ring sealSnap-down latch.30
Solid Tactical Metal Ammo CanMetalRubber gasketWelded lock.30, .50
Redneck Convent Metal Ammo CaseAlloy steelRubber gasket Latch .30, .50
MTM ACR8-72 Ammo Crate Utility BoxPolypropyleneTongue and groove O ring seal systemDouble padlock tabs and latches.30, .50
Sheffield 12629 Field BoxPlasticCompression fit lidBase-to-lid interlocking systemMulti-caliber

Best Ammo Storage Containers

Here is our list for the best containers for storing ammo:

  1. MTM AC4C Ammo Crate (4-Can)
  2. Plano Field Box
  3. Solid Tactical Metal Ammo Can
  4. Redneck Convent Metal Ammo Case
  5. MTM ACR8-72 Ammo Crate Utility Box
  6. Sheffield 12629 Field Box

Best Ammo Storage Containers – Reviews

I got my ammo storage containers prioritizing features like portability, security, and more for different situations. So I sorted my recommendations according to the category they fit the best. The categories and the reviews should be able to point you in the right direction. 

Best Overall MTM AC4C Ammo Crate (4-Can)

Editor's Choice

MTM AC4C Ammo Crate (4-Can)

A rugged and stackable carrying crate for ammo storage and transport.

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  • Storage A+
  • Durability A-
  • Portability A+
  • Security A-
  • Overall A+

Our Grade

A

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MTM AC4C Ammo Crate (4-Can) Specs

  • Material Polypropylene
  • Seal O-ring seal
  • Weight 5.9 lbs
  • Closure type Latch
  • Caliber Multi-caliber

MTM AC4C Ammo Crate (4-Can) Review

My best overall pick is the MTM AC4C Ammo Crate (4-Can) because it can store any kind of ammunition caliber, comes in a convenient size, and has a very secure seal. 

These MTM ammo crates are built to last. Made from polypropylene, they strike the perfect balance between durability and portability. Whether it’s tucked under my bed or loaded into the truck for a weekend hunting trip, it holds up like a champ. Plus, with a capacity of up to 100 lbs of ammo, I never worry about running short.

The seal on this MTM ammo crate is impressive, featuring an O-ring seal around the lid that effectively keeps moisture and air out. I’ve seen it in action when a friend’s garage got flooded – the crate stayed dry inside despite being partly submerged.

Opting for the 4-can version of the MTM ammo crate offers versatility. Being able to detach cans individually comes in handy when I only need to take specific ammo along. Plus, the stackable design, while limited to identical crates, adds to its practicality.

At around $50, it’s not the cheapest option, but for me, the peace of mind it offers is worth it. Despite some concerns about stacking under heavy loads, the MTM AC4C Ammo Crate remains my top choice for secure and portable ammo storage.

MTM AC4C Ammo Crate (4-Can) Pros and Cons

  • Stackable
  • Multi-ammo storage
  • Individually lockable and portable cans
  • Expensive
  • Strains under pressure

Best budget Plano Field Box

Plano Field Box

A plastic ammo storage box with o ring and locking latch.

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  • Storage A-
  • Durability A-
  • Portability A+
  • Security B+
  • Overall A-

Our Grade

A-

Reader’s Grade

TBD

Based on 0 Reviews

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Plano Field Box Specs

  • Material Plastic
  • Seal O-ring seal
  • Weight 1 lb
  • Closure type Snap-down latch
  • Caliber .30

Plano Field Box Review

Plano Field Box is my pick for the best budget because it’s quite portable and protects my stockpile from the elements. It does this at an incredibly affordable price of around $10.  

Made from sturdy plastic, it’s durable yet lightweight, with thicker walls than most storage containers. This means I can load it up without worrying about it buckling under the weight.

The recommended caliber for the Plano Field Box is .30, but I’ve carried loose rounds of 9mms and 45 ACPs on separate occasions. I’m yet to carry packaged ammo in the Plano Field Box, but it’s said to fit 6-8 boxes of .30 caliber. 

While it’s primarily designed for .30 caliber, I’ve used it for other rounds like 9mm and .45 ACP without any issues. It’s compact but can hold around 6-8 boxes of .30 caliber ammo.

What I love most is how easy it is to carry. The sturdy handle and snap-down latch make it a breeze to transport, whether I’m driving or walking to the range. Plus, its O-ring seal and rubber gasket keep my ammo dry even in light rain.

However, it’s worth noting that its compact size means it’s not ideal for extended trips or storing larger ammo. Also, being made of plastic, it’s not the most theft-proof option out there.

Overall, for its price, the Plano Field Box is a solid choice. It does the job of protecting your ammo while offering portability and durability.

Plano Field Box Pros and Cons

  • Portable
  • Lightweight and compact
  • Water-resistant seal
  • Can be pried open
  • Capacity – Not enough storage for long hunting trips

Best military grade Solid Tactical Metal Ammo Can 

Solid Tactical Metal Ammo Can 

A sturdy metal ammo can with a welded lockable loop closure.

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  • Storage A-
  • Durability A+
  • Portability B+
  • Security A+
  • Overall A-

Our Grade

A

Reader’s Grade

TBD

Based on 0 Reviews

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Solid Tactical Metal Ammo Can Specs

  • Material Metal
  • Seal Rubber gasket
  • Weight 4 – 6 lbs
  • Closure type Welded lock
  • Caliber .30, .50

Solid Tactical Metal Ammo Can Review

If you’re looking for a military-grade ammo storage container, my pick is the Solid Tactical Metal Ammo Can which landed as the best of the category because of its rugged make and heavy-duty locks and seals. 

For long-term storage, you can’t beat the durability of this ammo can. It’s sturdy, stackable, and can handle a hefty stockpile without any issues. Made of steel with a powder coating, it keeps moisture out, reducing the risk of corrosion.

Though it’s a bit heavier, the black matte finish gives it a discreet look, great for staying hidden during hunts. The rubber gasket around the lid keeps everything secure, and the included desiccant pack is a nice bonus.

However, the locks could be better. You have to buy the welded lock kit separately, which is a bit of a hassle. Plus, the lock loop can be cut with bolt cutters, so it’s not the most secure option for outdoor use.

Despite being a bit pricey at around $50, it’s worth it for its durability and reliability. The Solid Tactical Metal Ammo Can is a solid choice for keeping your ammo safe in the long run.

Solid Tactical Metal Ammo Can Pros and Cons

  • Airtight and watertight
  • Stackable
  • Includes a desiccant packet
  • Sturdy
  • Lock – Lock has to be purchased separately
  • Lock Loop Lock loop could be cut with bolt cutters
  • Heavy

Best portability Redneck Convent Metal Ammo Case

Redneck Convent Metal Ammo Case

A sturdy metal ammo can.

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  • Storage A-
  • Durability A+
  • Portability A-
  • Security B-
  • Overall A-

Our Grade

A-

Reader’s Grade

TBD

Based on 0 Reviews

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Redneck Convent Metal Ammo Case Specs

  • Material Alloy steel
  • Seal Rubber gasket
  • Weight 1.76, 2.69 lbs
  • Closure type Latch
  • Caliber .30, .50

Redneck Convent Metal Ammo Case Review

The Redneck Convent Metal Ammo Case is my pick for best portability because it’s just the right size and design to carry around. Available in 30 and .50 caliber sizes, I opted for .50 to accommodate my .308 cartridges, which require a bit more space.

The Redneck Convent Metal Ammo Case is very sturdy and thick because it’s made of alloy steel. It handles the weight of my ammo stash without any issues, thanks to its heavy gauge steel construction.

The handle is sturdy and comfortable to hold, and despite its larger size, it’s surprisingly lightweight. Plus, the camo green color blends well with my hunting gear, helping me stay low-key in the field.

With its airtight rubber gasket and tight-sealing lid, it keeps water, dust, and debris out effectively. I tested its water resistance by submerging it for hours, and it passed with flying colors – not a drop of water inside.

While the latch opens easily, I wish it offered a bit more resistance for added security, especially during bumpy rides. Adding a cable padlock helped, but it would be nice if there was a built-in solution.

Despite this minor drawback, the Redneck Convent Metal Ammo Case is still my top pick for its practicality, portability, and affordability – all for under 20 bucks.

Redneck Convent Metal Ammo Case Pros and Cons

  • Waterproof
  • Heavy-duty handle
  • Lightweight and easy to carry
  • Camouflage color
  • No lock loop
  • Lid opens too easily

Best for storage MTM ACR8-72 Ammo Crate Utility Box

MTM ACR8-72 Ammo Crate Utility Box

A stackable plastic ammo storage box.

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  • Storage A+
  • Durability B+
  • Portability B+
  • Security B+
  • Overall B+

Our Grade

A-

Reader’s Grade

C+

Based on 2 Reviews

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MTM ACR8-72 Ammo Crate Utility Box Specs

  • Material Polypropylene
  • Seal Tongue and groove O-ring seal system
  • Weight 1 lbs
  • Closure type Double padlock tabs and two strong latches
  • Caliber .30, .50

MTM ACR8-72 Ammo Crate Utility Box Review

My go-to for storage is the MTM ACR8-72 Ammo Crate Utility Box as it holds a ton of ammo, stacks well, and has a pretty good seal.

While MTM claims it can carry up to 85 lbs of ammo, I found the handles aren’t strong enough for heavy loads. I had a mishap while hunting when the handle gave way, so now I use it mainly for storage at home. However, it still comes with me on hunting trips to store gear and lighter ammo in the truck bed.

Security-wise, it’s lockable, but the plastic locking loops aren’t very robust. Plus, you only need to unlock one side to open it, which seems redundant. But since I recommend it mainly for storage, it’s not a huge concern if your storage space is secure.

With its airtight O-ring seal, it keeps dust and moisture out, though it’s not fully waterproof. Personally, I’m not too bothered by this since I don’t anticipate it getting flooded at home.

Overall, the MTM Utility Box might not be the best ammunition storage container for outdoor use, but it’s perfect for neatly stacking and storing your ammo reserve.

MTM ACR8-72 Ammo Crate Utility Box Pros and Cons

  • Stackable
  • Airtight
  • Can hold up to 85 pounds of gear
  • Not submersible
  • Not very secure

Best security Sheffield 12629 Field Box

Sheffield 12629 Field Box

A stackable plastic ammo storage box with latch and padlock locations.

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  • Storage B+
  • Durability A-
  • Portability A+
  • Security A+
  • Overall A-

Our Grade

A

Reader’s Grade

B

Based on 1 Reviews

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Sheffield 12629 Field Box Specs

  • Material Plastic
  • Seal Rubber gasket
  • Weight 1.12 lbs
  • Closure type Base-to-lid interlocking system
  • Caliber Multi-caliber

Sheffield 12629 Field Box Review

My top pick for security is the Sheffield 12629 Field Box. It has excellent locks and seals, and its compact size makes it easy to carry while keeping your ammo safe.

With its base-to-lid interlocking system and three locking loops, including a tough metal one, it’s tough to break into. While it doesn’t come with padlocks, finding the right size wasn’t too difficult.

The compression-fit lid, sealed with a rubber gasket, keeps dust and moisture out effectively. Despite being plastic, it offers solid security.

Compared to heavier options, like my Solid Tactical Metal Ammo Can, the Sheffield Box is lightweight and easy to carry. Its handle sits on top of the lid for convenient transport and lays flat for stacking.

Though it may not hold as much ammo as larger containers, its secure locks and compact size make it perfect for day trips to the range. For those prioritizing security and convenience, the Sheffield Box is a solid choice.

Sheffield 12629 Field Box Pros and Cons

  • Airtight
  • Secure
  • Stackable and portable
  • Ergonomic carrying handle
  • Not waterproof
  • Too small for large caliber

Best Ammo Storage Container – Buyer’s Guide

These ammo storage containers are among the best I’ve found, but it’s essential to consider the key features when choosing one. Here are some factors to keep in mind when purchasing ammo storage containers.

Factors To Consider When Buying an Ammo Storage Container

  • Material – When choosing ammo storage containers, consider materials like plastic, metal, or high-quality wood. Plastic ones are lightweight and portable, ideal for travel, while metal containers offer durability and weather resistance. Wooden boxes are suitable for heavy rounds but may not withstand the elements well. Ensure your choice can support your ammo’s weight, seals well, and suits your portability needs.
  • Storage – When choosing ammo boxes, think about the caliber of your ammunition, like .30 or .50. Consider the size of your stockpile too. If you’re a hobby shooter, you may need less space, but serious hunters will likely need more. Make sure to pick a container slightly larger than your longest shell for a comfortable fit.
  • Stackability – They design most ammo storage containers with ridges on the lid and base to help you stack them into columns. This prevents sliding during transportation and helps maximize your storage space, especially with metal containers, which handle stacking well.
  • Resistance to weather – To keep your ammo safe, choose a container with water-resistant material and tight seals. This protects against air, moisture, and heat, preventing corrosion and maintaining quality. If heat exposure is a concern, opt for non-conductive plastic. 
  • Portability – Consider portability when traveling with your shooting gear. For short trips, opt for a lightweight container with sturdy handles. But for heavier loads, a large ammo box with wheels is your best bet.
  • Closure – When choosing ammo storage containers, go for latches for secure closure. For extra security, consider double padlock tabs. Look for a closing mechanism that’s both secure and easy to open. 

Once you get the ammo storage container(s) that fits your needs, the next step is to correctly store your stock, as faulty storage can shorten the shelf life of your ammo.

How To Correctly Store Your Ammo

Preserving your ammo’s shelf life is key, as it can be quite pricey. Here are some easy ways to store it properly and make the most of your investment:

  • Keep away from heat – Ammo can withstand heat up to around 150°F, but it’s best stored between 55-85°F. Avoid extreme temperature swings by not storing it in your vehicle trunk or attic, especially in summer. Choose a storage container that blocks UV rays to protect the contents.
  • Keep ammo dry – To prevent corrosion, store your ammo in a cool, dry space. Opt for a storage container with airtight seals to keep out moisture. In humid environments, use desiccant packs to absorb excess moisture and preserve the shelf life of your ammo.
  • Label and rotate – It’s easy to lose track of loose ammo, especially if you have a big collection. Label each round with its model and expiry date to keep things organized. Rotate your stock by moving older rounds to the front and placing new ones at the back.

Storing your ammo properly is key, especially when buying in bulk. Find what works best for you to keep your stockpile safe and long-lasting

Conclusion

Whether the stockpile of your favorite ammo is small or large, it needs protection from theft and the elements. The right ammo storage containers can help not only protect your ammo but also organize your stockpile and preserve the shelf life of your ammunition.

Best Ammo Storage Container – FAQs

Is it better to store ammo in plastic or metal?

Plastic containers are a budget-friendly storage option to keep your ammo away from dust and moisture, but plastic isn’t very durable and can break under pressure. Metal containers are more durable, especially under pressure or in a fire, but they come at a higher price point and could rust. Whatever you choose, make sure it has a good seal to keep it air- and water-resistant.

Is it better to store ammo loose?

Storing your ammo loose is a good way to pack more in your container. This especially works out if you live in a humid area, because ammo can get damaged when its packaging absorbs moisture. But on the other hand, the packaging makes it easy to keep track of the batch and how many you’ve used. A way to get around this is properly labeling your rounds when storing and rotating when you use a batch or buy new ammo.

How long will properly stored ammo last?

Ammo doesn’t really expire or go bad if it’s stored well. Sure, there’s an expiry date on the packaging, but that’s more for legal reasons than safety. The date will usually be around 10 years from manufacturing, but if the conditions are ideal, your ammo could last longer. Just make sure you’re storing it in a cool, dry, and dark place with limited air exposure.

How do you know if ammo is bad?

Bad ammo will have a damaged exterior. This could be dents, any sort of discoloration or corrosion on the outside, or even rust. If you see red or brown residue or a greenish-gray crust on the outside, your ammo’s gone bad and needs to be disposed of.

Can bad ammo damage your gun?

Yes, bad ammo can damage your gun. The round could jam on feeding or extraction, and if it’s rusty, it could cause friction on your gun’s loading surface and chamber. Friction is something you want to avoid, so always make sure to use good, well-polished ammo. 

Are plastic ammo cans suitable for long-term storage?

Yes, plastic ammo cans are suitable for long-term storage of ammunition. They provide excellent protection against environmental factors such as moisture and dust, which can degrade ammunition quality over time. As long as they are kept in a cool, dry environment, plastic ammo cans can effectively preserve the shelf life of ammunition.

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About Dave Chesson

Dave Chesson is prior Navy with a specialty in international arms dealing for the US government across multiple countries. Having traveled the world and abided by ATF and ITAR, Roy has a unique background in legal as well as practical capabilities of weapons deployment and use.

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1 COMMENTS

  1. I like these, but airtight they are not. This line of cases has a rubber seal but the lid is so flexible that it doesn’t hold a tight seal around the large circumference. It leaks more than enough to quickly discolor my dessicant packs removing moisture. To keep ammo dry I think you need the metal cans or a Pelican-like case with rigid sides and edges.

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