Looking to safely store 100 rounds of .223/5.56 ammo, organized and portable? These 100-round ammo boxes are designed to protect your rounds from moisture, dust, and impact while keeping them easy to transport. The top picks below are ideal for shooters and hunters who need reliable, stackable cases for bulk ammunition. Each option targets different storage priorities, from rugged durability to quick access. This guide helps you choose the best box for your needs, whether you’re at the range, on a hunt, or prepping for transport.
Summary table of chosen products:
- MTM RS-100-41: Indestructible polypropylene, full-size 100-round capacity, flip-top access, USA-made.
- MTM 100 Round Rifle Ammo Box (multiple calibers): Snap-lock latch, textured surface, stackable with extra features.
- Frankford Arsenal Hinge-Top Ammo Box #1005: Versatile, hinge-top design, secure closure, durable polymer.
- MTM Case-Gard RM-100 Series (Green): Heavy-duty, stackable, precise fit for 100 rounds, load labels included.
- Evergreen .223 Ammo Case: Lockable, foam insert support, fits common rifle ammo, 100-round capacity.
MTM 100 Round Rifle Ammo Box 17, 204, 223, 5.56×45, 6×47
This MTM model is designed to hold 100 rounds of multiple rifle calibers, including 17, 204, 223, 5.56×45, and 6×47. It features a scuff-resistant textured surface and a snap-lock latch to keep contents secure. Maximum flexibility makes this box suitable for range bags and field transport. Best for shooters who load mixed calibers for convenience or who need a ready-to-go storage solution for several common rifle rounds.
Who it’s best for: avid shooters who carry a range of calibers and want a compact, stackable, well-protected box. Why selected: robust construction and multipurpose fit. Caution: ensure the exact overall length works with your magazine format or case space, as designs vary slightly across MTM products.
MTM 100 Round Rifle Ammo Box 17, 222, 223, 5.56×45, 6×47, Clear Blue
This MTM box emphasizes a clear blue finish with a practical, scuff-resistant surface. It’s built to hold 100 rounds for 17 Rem, 222 Rem, 223 Rem, 5.56×45, 204 Ruger, and 6×47. The design prioritizes portability and visibility of contents, making it a good choice for shooters who want quick identification of stored ammo. Best for: range use where visibility and quick access matter. Caution: the textured finish helps grip, but color clarity can slightly affect visibility in low light.
MTM RS-100-41 100 Round Box (Flip-Top)
The MTM RS-100-41 uses a rugged plastic construction with a flip-top lid and a snap-lock latch. It supports a wide range of calibers, including 223 Rem and 204 Ruger, with the lid designed to minimize accidental openings. Best for: users who prioritize easy single-handed access and a secure seal. Caution: ensure you’re not exceeding the maximum overall length when storing certain longer cartridges.
Frankford Arsenal Hinge-Top Ammo Box #1005
The Frankford Arsenal hinge-top box holds 100 rounds of common calibers such as 17 Rem, 222 Rem, and 223 Rem. Its hinge-top design prevents the lid from closing unintentionally and includes a clasp for a secure closure. Made from high-density polymer, it aims to withstand cold weather and rough handling. Best for: environments where exposure to cold is likely or where a secure, durable closure matters. Caution: hinge action should be checked for smooth operation after heavy use.
MTM Case-Gard RM-100 Clear Blue
This MTM Case-Gard RM-100 is a 100-round rifle ammo box that comes in a clear blue finish. Constructed from virtually indestructible polypropylene, it resists warping, cracking, and chipping. It includes a Snap-Lock latch and a textured finish for handling. Best for: shooters who want rugged, stackable storage with visible contents. Caution: keep in mind that the specific caliber fit may vary slightly with different MTM RM-100 models.
MTM Case-Gard RM-100 Green
This green RM-100 box embodies the classic MTM durability with a 100-round capacity and a Snap-Lock latch. It is designed for easy stacking and transport, with a textured finish to resist scratches and improve grip. Best for: collectors or shooters who prefer a color-coded or green-toned storage option. Caution: color preference should not affect internal padding or foam availability, depending on the exact SKU.
Evergreen .223 Ammo Case
Evergreen offers a lockable ammo case designed to hold 100 rounds of .223/5.56 and compatible calibers such as 300 BLK and 7.62. It includes a foam insert to help secure ammunition and a keyed TwistLock latch for waterproof security. Best for: storage where tamper resistance and moisture protection are priorities. Caution: foam inserts may require periodic replacement to maintain a snug fit for different ammunition shapes.
Buying Guide
What matters most when choosing a 100-round ammo box for .223/5.56? Consider durability, closure reliability, and how the box fits into your transport or range setup. If you need rugged, weather-resistant storage, prioritize boxes made from high-density polypropylene with secure snap-lock or hinge-top closures. For speed of access at the range, flip-top designs or clear see-through bodies help you locate rounds quickly. If you store a mix of calibers, choose a box advertised for multiple rifle rounds to avoid space issues or misfit pockets.
Key considerations you may compare across options:
- Material and durability: polypropylene boxes resist impact and weather better than thinner housings.
- Closure type: snap-lock, flip-top, or hinge-top closures affect ease of access and spill prevention.
- Capacity and fit: ensure the internal dimensions accommodate 100 rounds of your intended calibers; verify maximum overall length compatibility if you store long cartridges.
- Stackability and labeling: features like textured finishes, load labels, and stackable feet help organization and storage efficiency.
- Security: lockable latches or keyed locks provide additional theft or loss protection for portable storage.
Frequently Asked Questions
- What does “100-round box” specifically mean for rifle ammo? It refers to a container designed to hold 100 rounds in a single organized compartment or in specific rows, depending on the model.
- Are these boxes suitable for long-term storage? Yes, most are built to protect ammo from moisture and dust, though long-term storage should consider climate control and periodic checks.
- Can I store different calibers in the same box? Some models advertise multi-caliber compatibility; verify the internal cavities and dimensions before mixing calibers.
- Do these boxes lock? Some options include lockable latches or keyed twists for added security. Check the product description for locking features.
- Will these boxes fit common ammo cases and bags? Most are designed to be portable and stackable, but verify dimensions and lid clearance for your specific transport setup.
- What maintenance is needed for these boxes? Clean with mild soap and water; ensure latches operate smoothly and replace foam inserts if they wear out.