Most ammo can roundups on the internet are written for hunters and casual gun owners. They hand you a steel surplus can, a plastic crate, and a magazine case, then stop. That misses the real problem reloaders face, which is that component brass, empty cases, and finished handloaded rounds are three different materials with three different storage problems, and one container rarely handles all three well.
So this is our reloader-specific answer to the query best ammo storage cans for reloading, updated for October 2026. We compared 12 cans and crates, weighed the gasket quality, the empty weight, the interior dimensions, and how each one behaves when you try to sort a bench by cartridge. If you want the broader hunting-and-home-defense ranking instead, read our general best ammo cans guide. If you are shopping in pairs or triples, our ammo can sets roundup covers the bundled options.
The short version: military surplus steel remains the community benchmark for long-term dry storage, but modern gasketed polymer wins on weight and organization. And no single can does everything, which is why our pick list covers crates, magazine cans, pistol cases, mini cans, and both budget and heavy-duty steel.
Table of Contents
Top 3 Picks for Ammo Storage Cans for Reloading in 2026
These three cover the widest range of reloading storage tasks, from bulk component storage to finished rounds to loaded magazines.
MTM AC4C 4-Can Ammo Crate
- Four 30 cal cans in one crate
- Stackable with tie-down spots
- Water-resistant O-ring seal
Best Ammo Storage Cans for Reloading (October 2026)
Every pick below, with the specs that actually matter when you are sorting ammunition by cartridge.
| Product | Specifications | Action |
|---|---|---|
| MTM AC4C 4-Can Ammo Crate |
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| MTM TMC15 Tactical Mag Can |
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 Solid Tactical 50 Cal Steel Ammo Can |
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 U.S. G.I. M2A1 50 Cal Ammo Can |
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 Fortress 50 Caliber Metal Ammo Can |
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 Evergreen Pistol Ammo Case |
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 Flambeau Mini Ammo Can |
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 Plano Tactical Ammo Crate |
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 Reapr Steel Ammo Can |
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 PATRON 50 Cal Metal Ammo Can |
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| MTM AC50C-40 50 Cal Ammo Can |
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 HARDROCK 30 Cal and 50 Cal Two-Can Set |
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How We Evaluated Ammo Cans for Reloading
Every pick in this roundup was judged on the same four things, and each one traces back to a decision a reloader actually makes at the bench.
Seal and gasket quality. We treated water-resistant, waterproof, and IP67 as three different claims, not one. A gasket that compresses cleanly when the latch closes is what keeps case and primer corrosion off your brass.
Empty weight. Steel cans in this group weigh between about 5.5 and 8.8 pounds empty. That is dead weight you carry before you put a single round in them, and it is why a full steel can becomes a two-person lift.
Interior dimensions. We compared usable interior space against real cartridges, not exterior footprint. The 50 caliber format gives roughly 11 inches by 5.5 inches by 7 inches of usable space.
Organization. Foam inserts, dividers, and multiple compartments decide whether you can keep one cartridge per can or end up with a mixed pile.
1. MTM AC4C 4-Can Ammo Crate – Best Overall for a Reloading Bench
MTM AC4C 4-Can Ammo Crate, 30 Caliber, Dark Earth/Army Green
Four 30 cal cans in one crate
23.6 x 11.25 x 7.5 inches
5.9 pounds empty
Pros
- Reinforced polypropylene resists impact
- Four 30 caliber cans in one stackable crate
- Water-resistant O-ring seal keeps out dust and moisture
- Four tie-down spots for vehicle transport
Cons
- Lift-off lid detaches instead of staying hinged
- Listed capacity figures differ between product sections
This is the can system we keep coming back to for bench storage. Four separate 30 caliber cans ride inside a reinforced crate, which means you can dedicate one can to 223 brass, one to 5.56 loaded rounds, one to a specific powder or bullet lot, and keep the fourth empty or reserved for a new build.
That four-way split is the whole point. Our biggest recurring complaint about large steel cans is that everything gets dumped into one cavity, and then nobody can find the lot they need at range time. The crate forces segregation without forcing you to buy four separate purchases.
The O-ring seal is the part that matters most for reloading use, and it is water-resistant rather than rated for submersion. In practice that means a damp garage, a humid closet, and a truck bed are all fine, but do not plan on a river crossing with it.
Owners also point out the four tie-down spots, which is a genuinely useful detail for anyone hauling a bench of brass to the range. The crate is stackable, so a wall of these is a real shelving system rather than a pile.
What the crate handles well
The 23.6 by 11.25 by 7.5 inch footprint fits a standard shelf, and at 5.9 pounds empty a filled crate stays within the 15 pounds the manufacturer recommends. That is the difference you feel on a low shelf, where a full steel can needs a second pair of hands. Buyers consistently rate the durability and the value of getting four cans plus a crate in one unit.
Where the crate disappoints
The lift-off lid is the honest drawback. Because it is not hinged, a can can be set down upside down on the bench and dumped if you are not paying attention, which is exactly the kind of accident that mixes cartridges. Also note that published capacity numbers for this crate are inconsistent between listing sections, so size your session count from the 30 caliber can interior rather than the headline figure.
2. MTM TMC15 Tactical Magazine Can – Best for Loaded Magazines
MTM TMC15 Tactical Mag Can, Dark Earth
Holds 15 magazines of 20 or 30 round 223/5.56
15.3 x 9.3 x 8.8 inches
3 pounds empty
Pros
- Precut military-grade foam holds 15 magazines
- Triple padlock tabs for security
- Dual latches resist accidental opening
- Stackable impact-resistant body
Cons
- Foam is cut for standard-length magazines
- Water resistant only
- not rated for submersion
Loaded magazines are the one reloading category that deserves its own container, and this is the one we recommend for the job. The precut foam holds 15 magazines of 20 or 30 round 223 and 5.56, which covers a typical match day plus a spare.
Our stance on magazine storage matches what the reloading community settled on long ago. Concern about long-term spring compression in magazines is largely a myth; the springs fail from cycling, not from sitting sealed. So the real job of this can is organization and keeping magazines clean and dry, not preventing an imaginary decay.
The O-ring seal gives you dust and moisture resistance for dry storage, and the triple padlock tabs are a genuine upgrade over a plain snap lid if you have children in the house. At 3 pounds empty, this is the easiest can in the roundup to carry from a vehicle to a firing line.
Ratings reflect how much owners like the precision of the foam cut, the strength of the latches, and the fact that the can stacks without magazines shifting. It ranks among the highest-rated magazine storage products in its category.
Who should buy the magazine can
Anyone running a carbine competition schedule or keeping a bank of loaded 5.56 magazines benefits from the fixed foam layout, because you can see at a glance whether a position is empty. The 9.3 by 15.3 by 8.8 inch footprint also works in a small locker or a range bag.
Where the magazine can falls short
The foam is cut for standard-length magazines, so extended or heavy magazine bodies will not seat. It is also water-resistant, not waterproof, so treat it as a dry-storage can. And remember that the can is for magazines only; it is far too small for loose brass or loose rounds.
3. Solid Tactical 50 Cal Steel Ammo Can – Best Heavy-Duty Steel
Solid Tactical Lockable 50 Cal Metal Ammo Storage Box Black – Military & Army Steel Ammo Can for Ammunition Storage – Waterproof Ammo Crate Utility Bo
Alloy steel 50 cal can
12.03 x 6.09 x 7.5 inches
5.5 pounds maximum recommended
Pros
- Tight welds and a sealing lid gasket
- Lockable latch discourages tampering
- Available in 30 cal and 50 cal with multiple finishes
- Doubles as a utility or gear box
Cons
- This listing is the without-foam configuration
- Minimal packaging can allow dented corners in transit
If your priority is long-term dry storage in an unheated space, new steel is the safe answer. The waterproof gasket seal and tight welds on this can match what military surplus hardware gives you, without the rust and finish variance you get buying used.
Reviewers describe the seal as consistent and mention holding roughly 1000 rounds of 5.56-style ammunition, which makes it a realistic home for a bulk supply of one specific cartridge. That single-cartridge discipline is the right way to use a steel can.
The lockable hasp is a real advantage over plastic snap latches in a shared household, and plenty of owners report repurposing the can for tools, gear, and snacks once the ammo moves to a smaller container. The 50 caliber footprint nests neatly on a shelf with other cans of the same shape.
Ratings land at 4.7 across close to 5000 reviews, with a small one-star slice tied mostly to transit damage rather than function. The form factor is offered in both 30 cal and 50 cal, so you can match the can to the cartridge rather than forcing a 30 cal load into a big cavity.
What steel does better than polymer
Steel does not off-gas, does not become brittle with age, and shrugs off a stack falling on it. For a garage, a basement, or a shed with temperature swings, a welded steel body with a real gasket is the most forgiving option we tested. The 12.03 by 6.09 by 7.5 inch body also keeps the footprint tight for shelving.
What steel costs you
The 5.5 pound empty weight is already committed before you add a single round, and a full can gets heavy enough to be awkward off a low shelf. This listing also arrives without interior foam, so you need a divider insert if you want more than one compartment. The minimal packaging is a small risk of dented corners, which is cosmetic but worth knowing.
4. U.S. G.I. M2A1 50 Cal Ammo Can – Best Surplus Pick
U.S. G.I. M2A1 50 Cal Ammo Can Organizer (OD Green) – Watertight Seal Metal Storage Box w/ Hinged Lid & Secure Latch – Ideal Ammo Can Surplus for Gear, First Aid, & Survival Supplies
Previously issued M2A1 surplus can
11 x 5.5 x 7 inch interior
5 pounds empty
Pros
- Authentic previously issued military can
- Watertight rubber gasket lid seal
- Heavy gauge steel with hinged lid
- Folding carry handle for transport
Cons
- Surplus condition varies between examples
- Some pieces carry an odor that needs airing out
- Stencil and caliber markings are inconsistent
This is the can the reloading community keeps pointing new buyers toward. On the r/Firearms thread debating the best place to buy ammo cans, the top reply is that metal military surplus cans are the gold standard, and that is the category this belongs to. The r/reloading threads reach the same conclusion: gasket quality matters more than the shell material.
What you are buying is genuine previously issued hardware with a watertight rubber gasket, heavy gauge steel, and a folding handle. The interior measures 11 by 5.5 by 7 inches, which is the standard 50 caliber cavity and a good fit for a bulk block of one cartridge.
Owners report using it for a wide mix of handgun, rifle, and shotgun ammunition, and the seal stays in good condition even on older examples. With close to 3400 reviews averaging 4.7, the pattern is that buyers understand exactly what surplus means and treat light rust as character rather than defect.
The other point that comes up constantly in forum threads is that surplus cans latch well, seal tight, stack neatly, and cost less than new steel. The trade is condition variance, and that is the honest bargain.
Why surplus steel still wins arguments
The gasket is the whole case for milsurp. A rubber gasket that has survived decades still compresses evenly when the latch closes, and a tight latch plus a sound gasket is what keeps humidity away from case and primer. The hinged lid also stays attached, so a bench top can will not tip and dump rounds the way a lift-off lid can.
What to inspect before you commit
Condition varies by example, and some arrive scratched, dented, or with light surface rust. Some carry an odor from prior use or sealant that you will want to air out. Stencil and caliber labeling is not consistent between pieces, so label the can yourself rather than trusting the markings. A can that arrives without a usable gasket is a parts can, not a storage can.
5. Fortress 50 Caliber Metal Ammo Can – Best for High-Capacity Steel
Fortress 50 Caliber Metal Ammo Can, 50 Cal
All-steel airtight can
19.7 x 15.8 x 13.4 inches
5.7 pounds empty
Pros
- All-steel build for long-term storage
- Airtight rubber-sealed closure
- Solid hinged lid for repeated access
- Large capacity for bulk ammunition
Cons
- Heavier empty weight than polymer alternatives
- Latch tension needs occasional adjustment
For anyone whose reloading problem is volume rather than sorting, this is the can that solves it. The stated 50 liter storage volume is far larger than the standard 50 caliber form factor, so you can put a serious quantity of one cartridge into a single container.
The airtight rubber-sealed closure is the feature owners cite most. Once that seal is doing its job, a can holding bulk finished rounds in a humid basement stops being a worry and becomes a non-issue for years.
The solid hinged lid matters more than it sounds. A hinged lid stays with the can when you set it down, and the easy-grip carry handle is positioned so a full container is easier to control than a bare steel box of the same size.
Ratings hold at 4.7 across just under 3000 reviews, and the recurring positive theme is that the airtight steel body and working seal beat lighter plastic cans for long-term dry storage. The 50 caliber form factor means it sits in the same shelving grid as your other cans.
When high capacity is the right call
Buy this when you have one or two dominant cartridges and want bulk quantities of each stored securely in a single place. Fewer, larger containers mean fewer lids to open, fewer labels to check, and less shelf depth consumed by a row of small cans. It also doubles as a general storage box when the reloading shelf overflows into gear.
When it is the wrong call
At 5.7 pounds empty, the weight penalty is real, and owners do mention adjusting latch tension periodically as the seal settles. If your storage space is a small closet or a vehicle cab, the volume advantage becomes a liability because you are lifting a much heavier box. And if you reload five cartridges at once, one big can is worse organization than four small ones.
6. Evergreen Pistol Ammo Case – Best for 100 Rounds of Pistol Ammunition
Evergreen Pistol Ammo Case Compatible with 5.7/9mm/.40/.380-100 Rounds Lockable USA Made
Holds 100 rounds of 5.7/9mm/.40/.380
9.5 x 5.8 x 2.8 inches
IP67 waterproof
Pros
- Precut foam holds 100 rounds of common pistol cartridges
- IP67 waterproof dustproof and rustproof
- Keyed TwistLock latches with pressure equalization
- Lockable and made in the USA
Cons
- Low-profile internal depth limits it to pistol ammunition
- Heavier and bulkier than an open can for bench storage
Handgun reloaders have a specific storage problem, and this case solves it cleanly. The precut foam holds 100 rounds across 5.7mm, 9mm, .40, .38 Special, and .357, so your carry ammo, match ammo, and plinking ammo each have a defined slot.
Unlike a steel can, this is rated IP67 for waterproofing, dustproofing, and rust resistance, and it carries a lifetime manufacturing-defect guarantee. Flip Latch Pressure Equalization means the latch releases by itself when internal pressure changes, so you are not fighting a stuck lid after a temperature swing.
Owners especially value the keyed latches and the fact that it accepts a padlock, which makes it a reasonable choice for a home where ammunition needs to stay out of reach. With close to 1200 reviews at 4.7, this is one of the higher-rated pistol storage options in the group.
Internal dimensions of 8.4 by 4.4 by 2.3 inches define what you can put in it. That works perfectly for factory ammunition boxes and blister packs of loose pistol rounds, which is the overwhelming use case.
Why IP67 changes the storage equation
Every other plastic can in this roundup is water-resistant. IP67 means the case is dustproof and protected against immersion, which matters if you live somewhere humid, near standing water, or store ammunition in a car over a wet winter. Combined with the lock and the lifetime guarantee, it is the most protected option here for travel and humid climates.
Where the pistol case stops
The 2.3 inch internal depth is the hard limit, and it rules out rifle cartridges, shotgun shells in bulk, and any loose component brass. Owners also describe it as heavier and bulkier than an open can for plain range-bench storage. If you need capacity, not protection, an open steel 50 cal can is cheaper in effort and easier to grab from.
7. Flambeau Mini Ammo Can – Best for Compact Caches
Flambeau Outdoors Mini Ammo Can Stackable, Holds 300 Rounds of 223, Compact
Holds 300 plus rounds of .223/5.56
8.375 x 4.125 x 6.5 inches
Rigid resin body
Pros
- Stores four .45 boxes
- five 9mm boxes
- 50 shells or 300 plus .223 rounds
- Weatherproof gasket against dirt dust and moisture
- OTC latch closes with one hand
- Lay-flat design stacks neatly
Cons
- Water resistant rather than fully waterproof
- One-year limited warranty is shorter than most here
Sometimes a reloading problem is a small one. A weekend of pistol brass, a single box of 9mm, or a cache that needs to fit in a daypack does not justify a 50 caliber cavity, and this mini can is sized for exactly that.
The stated capacity is useful: four 50-round .45 boxes, five 9mm boxes, 50 shotshells, or more than 300 rounds of bulk .223 and 5.56. That is a realistic range-day quantity rather than a bulk-storage quantity, which is the distinction that matters here.
The weatherproof gasket handles dirt, dust, and moisture, and the over-the-centre latch gives a crisp one-hand closure. Reviewers consistently point to the small footprint and lay-flat stacking as the deciding advantages over a full-size can.
It weighs 27.22 grams empty, less than the polymer cans in this roundup by orders of magnitude, which makes it the easiest container here to move between a vehicle, a bench, and a field bag. Made in the USA from rigid resin, it is also the one pick that stays light when you fill it.
Where the mini can earns its place
Use it for cartridge-specific segregation: one mini can per caliber on a shelf, each holding a range block. The internal 6.75 by 3.375 by 5.5 inch cavity is a good match for factory ammunition boxes and a modest quantity of loose brass. Stacking several lay-flat is far more practical than trying to find room for full-size cans.
Where the mini can falls short
It is water-resistant, not waterproof, so it is a dry-storage solution rather than a flood or immersion solution. The one-year limited warranty is the shortest among these picks, which matters more if you plan to keep a can for a decade. And 300 rounds will not cover a bulk reloading session, so you will still need a larger can for the overflow.
8. Plano Tactical Ammo Crate – Best for Divided Organization
Plano Ammo Crate, Black, Lockable Plastic Ammunition Storage Box, Water-Resistant Protection with Interlocking Foam and Removable Dividers
Lockable crate with interlocking foam
16.14 x 12.99 x 9.45 inches
4.4 pounds empty
Pros
- Interlocking foam keeps ammunition scuff-free
- Two fully removable dividers for custom compartments
- Lockable snap-down latches for secure closure
- Stackable crush-resistant design with side handles
Cons
- Plastic snap latch is less theft-deterrent than a metal hasp
- Water resistant
- not submersible
When the problem is that you load three cartridges and a change of bullets, dividers are the answer. This crate ships with interlocking foam and two fully removable internal dividers, so you can build compartments for brass, loaded rounds, and components in one container.
That is the single most reloader-specific feature in this entire roundup. Nearly every other pick is a single cavity, and a single cavity is exactly how mixed-up cartridges happen. Owners also like that the stackable design resists crushing and that two side carry handles make it manageable.
The water-resistant O-ring seal keeps things dry in a damp garage, and the 4.4 pound empty weight keeps it manageable when loaded. The crate is frequently repurposed for gear organization beyond ammunition, which is a decent sign of build quality.
With 945 reviews at 4.7, the feedback centers on the removable dividers, the foam protection, and stacking without crushing. That is a coherent picture: this is an organization-first container rather than a maximum-protection one.
When dividers beat a bigger can
If you reload one or two cartridges seriously, dividers beat raw volume. You can dedicate a compartment to a specific lot number, keep a second compartment for the same cartridge at a different bullet weight, and stop mixing them. It also works well as a portable session box, since the whole thing opens flat on a bench or a tailgate.
When the crate is the wrong tool
The closure is snap-style plastic, which is a weaker theft deterrent than a metal lockable hasp on a steel can. It is also water-resistant rather than submersible, so it is not the choice for a flood-prone space. And at 16.14 by 12.99 by 9.45 inches it is a large footprint for a reloading bench, so measure your shelf before committing.
9. Reapr Steel Ammo Can – Best for Oversized Loads and Gear
Reapr Steel Ammo Can, Heavy Duty Locking Metal Storage Box, Airtight
Interior roughly double a standard can
15.5 x 9.25 x 5.5 inches
8 lbs 7 oz empty
Pros
- Interior about twice a standard military surplus can
- Thick steel with precise welds and seamless bottom corners
- Airtight watertight gasket that equalizes audibly
- Corrosion-resistant powder-coated finish
Cons
- Heaviest can here at 8 pounds 7 oz empty
- Single side carry handle lets contents shift
- Included foam piece has no obvious purpose
This is the pick if your storage problem is that nothing else is big enough. The interior measures 14 by 5 by 8.5 inches, roughly twice the volume of a standard military surplus can, and it is still a welded steel body rather than a plastic tub.
Owners describe the seal as airtight and watertight, with an audible pressure equalization when the lid opens, and they report using the can for tool storage, a truck center console, and even e-bike batteries. That is a strong durability signal from people who abused it on purpose.
It stacks vertically and horizontally thanks to side-mounted lay-flat latches, so a wall of them works as a shelving system. The powder coating is described as corrosion-resistant and rust-preventing, and it accepts lock shackles up to 5/16 inch for real security.
At 4.8 from 520 reviews, it matches the highest rating in this group, with 91 percent five-star. The praise centers on clean seams and a proper seal rather than on any single convenience feature.
When oversized steel is justified
Choose this when a standard 50 cal cavity cannot take a full case of loaded rounds, a long batch of match ammunition, or the gear that goes with your reloading hobby. The 8.5 inch interior width accepts longer items that a narrow surplus can will not seat, and the steel shrugs off a load without deforming.
When the extra steel is overkill
At 8 pounds 7 ounces empty, this is the heaviest can we tested, and that is before contents. The single side carry handle lets contents shift when it is carried like a suitcase, so lift it level. The small foam piece included in the base does not have an obvious purpose, and an 8.5 inch interior still excludes very long items.
10. PATRON 50 Cal Metal Ammo Can – Best With a Desiccant Pack Included
PATRON 50 Cal Ammo Can Metal 9mm Ammo Box Storage Crate Case for Shotgun Bullet Rifle Nerf Ammunition Waterproof Case-Gard Organizer for Men,Gift Boxes for Dad Husband Father (Black)
50 cal metal can with rubber gasket
11.8 x 6.1 x 7.5 inches
6.28 pounds empty
Pros
- Airtight and waterproof seal with rubber gasket
- Desiccant pack included in the box
- Flat-folding handle for stacking and transport
- Hinged lid with a locking latch
Cons
- Some owners report the seal may be slightly weak
- Hinge play can affect lid centering until adjusted
Including a desiccant pack signals that the manufacturer actually thinks about long-term storage, and reloaders treat that as a meaningful detail. The rubber gasket is described as airtight and waterproof rather than merely water-resistant.
Interior dimensions of 7.4 by 11.7 by 6.0 inches give a standard 50 caliber cavity, which is the right shape for a bulk block of one cartridge. The flat-folding handle is what makes it stackable and easy to move.
Owners also report repurposing the can for tools, camping gear, and RV storage, which tells you the build holds up outside the ammo world. The one-year warranty is short compared with the lifetime guarantees offered elsewhere in this roundup.
With 706 reviews at 4.6 and roughly 86 percent five-star, the pattern is solid construction and good value, with a small group noting the seal may need attention on certain pieces. It is also offered in 30 and 50 caliber sizes and in black or dark green.
Why a bundled desiccant matters
Moisture is the single biggest destroyer of stored ammunition, and a desiccant pack pulls residual humidity out of the enclosed airspace so the gasket is not the only thing working for you. Reviewers in reloading forums treat included desiccant as a sign of good faith, and it saves you a separate purchase and a step in the packing protocol.
Where this can is weaker
Some owners report the seal running slightly weak on certain pieces, and hinge play can mean the lid does not center perfectly until you adjust it. Those are small issues, but on a gasket-sealed can they matter more than on a snap-lid plastic box. At just over 6 pounds empty, it also carries the usual steel weight penalty.
11. MTM AC50C-40 50 Caliber Ammo Can – Best Value Per-Piece Storage
MTM AC50C-40 Ammo Can, 50-Caliber, Heavy-Duty Dual Latching System, Rugged Polypropylene Plastic, O-Ring Seal System, Water Resistant, Bulk Ammo Storage, USA Made, Black
50 caliber can with O-ring seal
13.5 x 7.4 x 8.5 inches
2 pounds empty
Pros
- Tongue and groove O-ring seal for water resistance
- Heavy-duty dual latching prevents accidental opening
- Only 2 pounds empty
- Comfortable handle with double padlock tabs
- Stackable design for efficient storage
Cons
- Plastic body is less rugged than steel in extreme conditions
- Latches can be stiff during the initial break-in period
This is the can most reloaders end up owning, and it is the one we would buy first. At 2 pounds empty, it is roughly a third the weight of a steel can of the same class, which means you can move a loaded one without recruiting help.
The tongue and groove O-ring seal is the part that keeps reloading shooters coming back. It is water-resistant rather than submersible, but in a dry garage, a climate-controlled reloading room, or a truck bed it does the job. Inside dimensions of 11 by 5.8 by 7.2 inches are close to the standard 50 caliber cavity.
The heavy-duty dual latching system is a genuine upgrade over a single-latch plastic box because it resists accidental opening, and the comfortable handle plus double padlock tabs make it secure enough for a shared house. The design is explicitly stackable, so a stack of six is a shelving unit.
At 4.8 from more than 8800 reviews, it is one of the highest-rated ammo cans available, and the feedback pattern is consistent: people use it for ammunition, emergency supplies, and camera gear alike. The dual latches are the most commonly praised feature.
Why this is the default choice
Nothing else combines a 2 pound empty weight, a real O-ring seal, dual latches, and stackability at this level. One can per cartridge, four or six cans on a shelf, and you have a complete reloading storage system that you can lift with one hand and move in a car. For most reloaders that is the whole requirement list.
Where MTM draws the line
Community opinion on MTM is genuinely split, and the criticism is worth taking seriously. Some reloaders call it an organization box rather than a long-term storage container, and the honest version of that claim is that the seal is water-resistant, not rated for immersion. The plastic body is also less rugged than steel if a can gets crushed. The latches can feel stiff until they break in.
12. HARDROCK 30 Cal and 50 Cal Two-Can Set – Best Nested Steel Set
HARDROCK 30+50 AMMO Can Waterproof Metal –Army Green Ammo Box Steel –For Shotgun Rifle Nerf Ammunition suit 2pcs,Gift boxes for Dad Husband
30 cal nests inside 50 cal
50 cal is 7.5 x 11.8 x 6.1 inches
10 pounds for the set
Pros
- Authentic M2A1 military-spec construction
- Powder coat over zinc phosphate primer
- Watertight dust-tight gasket seal
- Small can nests inside the large one
Cons
- Heaviest set here at 10 pounds
- Some gaskets need rotating to seal properly
- Hinge play means careful centering before latching
The set answers a problem that single cans create: you need a 30 caliber cavity for pistol brass and a 50 caliber cavity for bulk rifle rounds, and buying them separately costs more and stores worse. Here the smaller can nests inside the larger one.
Build quality is the selling point. The rear wall is stamped M2A1 to military specification, and the finish is a powder coat over a zinc phosphate primer rather than spray paint, which is why owners single out the coating when comparing cheaper steel cans.
The front latch uses a rubber seal gasket described as dust-tight and watertight, and the hinged lid carries a locking latch plus a foldable flat handle. The clean unbranded look is a deliberate design choice that owners clearly enjoy.
With 2356 reviews at 4.6, roughly 84 percent five-star, satisfaction is high and the reservations cluster around gasket adjustment rather than durability. A 30 caliber can at 6.9 by 10.8 by 3.7 inches is a good fit for organized brass by cartridge.
Why a nested two-can set beats two singles
You get two working compartments from one footprint, and the small can stays with the large one instead of drifting onto a shelf somewhere else. The 30 caliber cavity suits cartridge-specific brass organization, while the 50 caliber cavity takes your finished rounds. Stackable construction means the pair still fits a grid with your other steel.
When the set works against you
At 10 pounds for the pair, this is the heaviest option in the roundup, and both cans are filled means you are moving steel rather than plastic. Gaskets on some pieces need rotating to achieve a full seal, and the hinge has enough play that you need to center the lid before latching. If the stack is going somewhere, budget for the weight.
How to Choose an Ammo Storage Can for Reloading
Metal or plastic? Metal is better for long-term dry storage and abuse; plastic is better for weight, organization, and cost. The reloader-specific version of that answer is that you probably want both: a plastic crate or 50 caliber can for the bench you reach into daily, and a sealed steel can for the bulk stock you rarely touch.
Size by quantity. Work out the round count of a typical session rather than your lifetime ambition. The mini can in this roundup holds four 50-round .45 boxes, five 9mm boxes, 50 shotshells, or more than 300 rounds of .223 and 5.56. The 50 caliber format gives roughly 11 by 5.5 by 7 inches of interior, and a solid 50 cal steel can is described by owners as holding about 1000 rounds of 5.56-style ammunition.
Empty weight is the number to compare. Steel cans here run from 5 pounds up to 8 pounds 7 ounces, and a two-can steel set is 10 pounds before you load it. The gasketed polymer cans in the 50 caliber format weigh 2 pounds and 5.9 pounds for a four-can crate. That difference is what decides whether a loaded can stays on the shelf or ends up on the floor.
Seal type and rating. Water-resistant, waterproof, and IP67 are three different claims. Only the pistol case in this group carries an IP67 rating, meaning dustproof and protected against immersion. Everything else is water-resistant or waterproof to varying degrees, which is fine for a dry room and wrong for a flood-prone basement.
Component brass, finished rounds, or loaded magazines. These are three different jobs. Component brass wants small compartments or many small cans so lots stay separated. Finished rounds want volume and a solid seal, ideally one cartridge per can. Loaded magazines want a precut foam can, not a loose cavity. For people who need serious closed storage rather than open shelving, our ammo storage cabinet roundup covers the next step up.
Budget-tier cans. We did not include a Harbor Freight can in this roundup, so we cannot give you a tested verdict on one. What the forum consensus does say is consistent: cheap cans fail on the gasket, not the shell. Judge a budget can by whether it has a real rubber gasket, a hinge that holds alignment, and a latch that closes fully. If the can arrives with no gasket, it is a parts bin, not a storage can.
How to Pack and Store Ammo in a Reloading Can
Pick the can, then treat packing as a separate task. Wipe the gasket clean, drop in a desiccant pack or two, organize by cartridge and lot number, and label the lid rather than the side wall.
Label the cartridge, the load or bullet weight, and the lot or date. Rotate oldest first so you are not shooting three-year-old brass that sat through a hot attic. Keep cans off bare concrete: a pallet or wooden riser gives airflow underneath and protects the base from a damp slab. Heat is the limit worth remembering, because above roughly 150 degrees Fahrenheit propellant and sealed components degrade faster.
Frequently Asked Questions
Are metal or plastic ammo cans better?
Metal is better for long-term dry storage because a welded steel body will not off-gas or deform under a stacked load, and military surplus steel is still the community benchmark. Plastic wins on weight and organization: a gasketed 50 caliber polymer can weighs 2 pounds empty against 5 to 8 pounds for steel, and it costs less. For reloaders, the practical answer is to use both.
Are MTM ammo cans good for long term storage?
They are good organization and dry-storage containers, but the seal is water-resistant rather than submersible, and the body is plastic rather than steel. MTM cans carry some of the highest ratings in this roundup, and the O-ring system performs well in a dry garage or climate-controlled reloading room. If your storage space is damp, flooding-prone, or reaches serious heat, use sealed steel instead.
How many rounds fit in a 50 cal ammo can?
It depends on the cartridge and whether you are storing loaded rounds or boxed ammunition. Owners of a solid 50 cal steel can report holding about 1000 rounds of 5.56-style ammunition, and the standard interior is roughly 11 by 5.5 by 7 inches. For smaller quantities, a mini can holds four 50-round .45 boxes or more than 300 rounds of .223 and 5.56.
Should I store ammo in magazines or in ammo cans?
Store loaded rounds in an ammo can and magazines in a magazine can. The concern that magazine springs fail from sitting sealed is largely a myth; springs fail from cycling, not storage. A precut foam magazine can holding 15 magazines keeps them organized, dry, and easy to count at the range, while a 50 caliber can handles loose finished rounds and component brass.
Are Harbor Freight ammo cans any good?
We did not test one in this roundup, so treat any specific verdict with caution. The recurring forum complaint about budget cans is that they fail at the gasket and latch, not the shell. A cheap can is fine if it has a real rubber gasket, a hinge that holds alignment, and a latch that closes fully. A can that arrives without a usable gasket cannot be made airtight.
Final Verdict on the Best Ammo Storage Cans for Reloading
Our pick for the best ammo storage cans for reloading is the MTM AC4C 4-Can Ammo Crate, because four separated 30 caliber cans plus a stackable crate solves the cartridge-mixing problem that a single cavity creates. For bulk, long-term, and multi-year storage, the surplus and new steel cans are still the benchmark the community measures everything else against.
Buy by job rather than by brand: crate for the bench, magazine can for loaded mags, 50 caliber polymer can for finished rounds, sealed steel for bulk, and IP67 hard case for humid or flood-prone spaces. Whichever you pick, put a desiccant pack in it, keep it off bare concrete, and label the lot. Last reviewed in October 2026.