350 Round Ammo Locking Storage Case - Waterproof, Mil Spec Protection

Our review of the 350 Round Ammo Locking Storage Case finds it best suited to shooters, hunters, and range regulars who need a single, rugged container to organize and protect a sizable pistol-ammo supply. The biggest reason to buy is straightforward: it stores up to 350 rounds in two removable trays with a center divider while offering an IP67 waterproof seal and shock-resistant construction for dependable protection in adverse conditions.

Key Features

• Capacity: Holds 350 rounds across two trays so users can carry a large, organized quantity of ammunition in one compact box.
• Organization: The center divider and removable trays keep calibers separated and accessible, reducing handling time when loading or inventorying ammo.
• Waterproof seal: IP67-rated protection and a high-quality rubber lining keep contents dry and block dust during outdoor use or travel.
• Durable materials: High-strength ABS shell with upgraded EVA interior provides shock and scratch protection for repeated transport and field use.
• Portable design: Built-in handles and a secure locking system make it easy to carry and lock the case for travel or storage.
• Caliber compatibility: Sized for many pistol cartridges including 9x19mm,.380 ACP,.40 S&W and several historical calibers for mixed collections.

Who It's For

This case is ideal for recreational shooters, hunting parties, and instructors who need a rugged, weatherproof container to move and store several hundred rounds without separate bulk boxes. It suits those who value organization and quick access at the range or in a vehicle.

Those who only store a small quantity of cartridges at home, or who need locked firearm safes with integrated key or electronic access, should look elsewhere. Also, customers with unusual cartridge shapes should verify fit, since mixed feedback reports some rounds fit more snugly than others.

Pros & Cons

Pros

• High capacity with two trays and a center divider for neat, efficient storage.
• IP67-rated waterproofing and rubber lining protect against moisture and dust.
• Robust ABS and EVA construction offers good shock and scratch resistance for travel.
• Broad caliber compatibility for common pistol rounds and several niche cartridges.

Cons

• Fit is mixed for some customers; certain rounds may sit snug or require slight adjustment.
• Not a substitute for a heavy-duty gun safe when secure firearm storage is required by law or preference.

Specifications

Our Verdict

The 350 Round Ammo Locking Storage Case is a practical, value-focused choice for shooters who need organized, weatherproof transport and storage for a large pistol-ammo supply. Its durable build, IP67 sealing, and dual-tray layout make it a reliable option for range trips and outdoor use, though anyone requiring certified safe-level security should pair it with a dedicated firearm safe.

Frequently Asked Questions

Will it keep rounds dry in wet conditions?
Yes. The case is IP67-rated with a rubber lining that seals out water and dust up to 1 meter for short periods.

What calibers fit inside?
It is compatible with many pistol cartridges including 9x19mm,.380 ACP,.40 S&W and several historic rounds; customers should check fit for uncommon sizes.

Is this a replacement for a gun safe?
No. It protects and organizes ammunition but is not a substitute for a secure firearm safe when storing weapons is required.