MTM Ammo Box 338RUM 416Rig 22rd

• 22-round capacity: Keeps a practical field or range quantity of large rifle cartridges together in one compact box, making load organization simpler without adding unnecessary bulk.
• Flip-top polypropylene construction: The hinged lid gives fast access to cartridges while the polypropylene body resists warping, cracking, chipping, peeling, expansion and contraction during regular transport and storage.
• Built for large magnum cartridges: The RF22-LM layout is shaped for long, powerful cartridges such as .338 Lapua Mag., .300 PRC and .416 Rigby, so rounds sit securely instead of shifting loosely in an oversized container.
• Dry, protected storage: The box is designed to help keep ammunition safe and dry, which matters when carrying hunting ammunition in changing weather or storing carefully prepared loads between trips.
• Lightweight USA-made design: At 90.00 g, this cartridge box adds very little weight to a pack or range bag while still providing a durable hard case for transport.

About the RF Series

MTM RF Series cartridge boxes are compact flip-top ammunition boxes made for shooters who want a simple, caliber-specific way to store and carry rifle ammunition. Within MTM's broader CASE-GARD ammunition storage range, the RF models focus on practical field use: a lighter, lower-capacity format than bench-oriented bulk boxes, but with enough structure to protect cartridges from knocks, dirt and moisture during transport.

The series is built around polypropylene construction, chosen because it stands up well to repeated handling and changing conditions without warping, cracking or chipping. That matters for hunters, reloaders and range shooters who may move ammunition between shelves, vehicles and packs on a regular basis. The flip-top format also makes the RF series easy to use one-handed when loading magazines or topping up a rifle at the firing point. Different RF variants are tailored to different cartridge families, so the series is especially useful for owners of magnum and specialty rifles who need a box matched to cartridge length and case profile rather than a one-size-fits-all container.

About the MTM Ammo Box 338RUM 416Rig 22rd

The MTM Ammo Box 338RUM 416Rig 22rd is a long-cartridge storage box intended for shooters using large magnum and dangerous-game calibers that need more internal room than standard rifle ammo boxes provide. Its 22-round capacity suits a realistic carry quantity for hunting, load development or a focused range session, while keeping ammunition separated and easier to count than when carried loose in a pouch or bag.

This model uses the RF22-LM long-magnum format, which is designed for cartridges including .338 Lapua Mag., .300 PRC, .338 Rem. Ultra Mag. and .416 Rigby, with a stated maximum overall cartridge length of 3.84". In practice, that makes it a useful choice for shooters who need one box for modern long-range magnum cartridges as well as classic heavy safari rounds. The flip-top lid gives quick access at the bench or in the field, and the polypropylene body provides a more secure structure than soft storage options when ammunition is riding in a vehicle, pack or hard case.

At 177.00 mm long and only 90.00 g, the box remains easy to pack, so it works well as a dedicated cartridge box for a specific rifle or load. The green hard-case format also helps keep handloads, hunting loads and practice ammunition separated in a clear, repeatable storage system.

About MTM

MTM Molded Products Company began in 1968 in Dayton, Ohio. The company remains family-run and continues to manufacture in Dayton, giving it a long-standing connection to American shooting and outdoor markets. MTM focuses on practical molded products for shooting sports, hunting and outdoor use, with a range that includes ammunition boxes, ammo cans, firearm cases and other shooting accessories.

That background is directly relevant to products like the CASE-GARD cartridge box line, where the emphasis is on durable molded storage that is easy to use, easy to organize and suited to repeated transport. Beyond shooting equipment, MTM also produces gear for archery, reloading, camping, hiking, fishing and overlanding, which reflects the company's broader expertise in functional polymer field accessories.

Main Features

• Manufacturer: MTM
• Made in: USA
• Capacity: 22 rounds
• Product type: Cartridge box
• Material: Polypropylene
• Length: 177.00 mm
• Weight: 90.00 g
• Accessories for: Ammunition

Warranty

MTM covers this ammunition box with a 2-year warranty.