This GUGULUZA .30 cal metal ammo can is a lockable, waterproof, and airtight box built for long-term storage. It has a flip-top lid and a secure latch that keeps moisture out and rounds organized. I like the compact shape for shelves and trunks. The metal shell resists impact and holds up to rough use.
The interior is simple and easy to dry if needed. For those who value a rugged classic look, this can delivers. Use it as a primary option when choosing the best waterproof ammo storage container for long term to protect brass and powder.

The Reapr steel ammo can is a heavy duty lockable box that seals against water and dust. It fits 30 or 50 cal loads and acts like a footlocker for ammo, tools, or small gear. I appreciate the thicker gauge steel and the secure hinge that holds up to repeated opening.
Inside, the space is roomy for bulk storage or layered packing. This can is a clear choice when you need the best waterproof ammo storage container for long term use in harsh conditions. It feels military tough and stands up well to rust risk when stored properly.

The Sheffield 12629 is a stackable .30 cal field box made in the USA. It is water and dust resistant and features a handle and lockable latch. I like the stackable design for limited shelf space and the molded handle that feels solid in hand.
The box seals well for seasonal storage and holds hunting gear besides rounds. This model makes a smart pick when choosing the best waterproof ammo storage container for long term storage in a closet or truck. It is efficient, functional, and space-savvy for hunters and shooters.

This six-pack of HOMESTEAD 50 cal ammo cans offers military-style steel storage in dark brown. The M2A1 design is familiar and reliable, with a clamp lid that creates a water-resistant seal. I value having multiples for rotation and organization of different calibers or loads.
The cans are stackable and robust for long-term storage. If you are organizing a prepper cache, these make sense. They work well as the best waterproof ammo storage container for long term because the military profile and seal reduce moisture risk while keeping rounds protected for years.

The MTM ACDC50 is a divided ammo crate with water-resistant features and lockable options. It has compartments to sort calibers and rounds. I find the internal dividers help me avoid mixing boxes and speed reload prep. The crate is built from tough polymer that resists rust.
This model is USA made and is useful for both range days and long-term stashes. It is a practical choice when you want the best waterproof ammo storage container for long term with sorting built in. It keeps boxes neat and rounds accessible when I need them.

This HOMESTEAD 50 cal six-pack in black gives you military-style cans with a uniform look. The lids clamp tight to form a water-resistant barrier. I like the black finish for a discreet storage setup and quick visual matching across racks.
These cans are ideal for large groups of rounds and secure long-term storage. They work well in basements and sheds. If you aim to standardize your ammo storage, these cans rank highly as the best waterproof ammo storage container for long term needs and for easy labeling and rotation.

The MTM AC50C-40 is a 50-caliber plastic ammo can with dual latches and an O-ring seal. It is water resistant and made from rugged polypropylene. I like the easy-open latches and the built-in seal that keeps moisture at bay for long-term storage.
The plastic shell is lighter than steel and resists rust. This product works well when you want a corrosion-free option. It ranks among the best waterproof ammo storage container for long term picks if you prefer lightweight, stackable, and clearly labeled boxes for rotation and travel.

The HOMESTEAD 50 cal six-pack in green offers identical military-style cans ideal for outdoor and camo setups. The M2A1 clamp lid gives a water-resistant seal and handles hold up to regular movement. I find green cans intuitive for hunting kit and field gear.
They form a uniform system for rotation and long-term storage. These cans suit garages and cache sites. When I pick the best waterproof ammo storage container for long term, I often choose matching cans like these because they simplify inventory and protect rounds from moisture and dirt.