MTM Ammo Box 38-357 50rd Slip Sq.Hole

• 50-round capacity: Holds a full box of handgun ammunition in one compact case, making it easier to organize range loads, reload batches, or caliber-specific storage.
• Slip-top design: The sliding lid keeps access simple and fast, which is practical when loading magazines or revolver cylinders at the bench without dealing with hinged lids.
• Square-hole tray: The square-hole layout supports cartridges upright and separated, helping keep rounds orderly and reducing contact between cartridges during transport and storage.
• Compact plastic construction: The lightweight plastic body adds little bulk to a range bag while providing a durable container for routine ammunition handling.
• Fits .38/.357 family cartridges: Designed for .38 Spec., .357 MAG, and .38 Auto Colt, giving one box a practical role across several common revolver and handgun loads.

About the E-50 Series

The MTM E-50 series is a line of 50-round handgun ammunition boxes built for shooters who want simple, compact cartridge storage without unnecessary bulk. Within MTM’s ammo box range, the E-50 models sit as straightforward slip-top boxes for common handgun calibers, aimed at range use, handload storage, and general ammunition organization. Their defining layout combines a sliding lid with a tray that keeps cartridges upright and separated, so rounds stay easier to count, sort, and access.

A key distinction of the series is its non-textured surface and square-hole interior. That makes the E-50 line a practical choice for shooters who prefer a clean, simple box profile and a cartridge tray that keeps rounds aligned in a stable grid. The format suits reloaders labeling different loads, revolver shooters carrying several ammunition types, and anyone building a tidy storage system for short handgun cartridges. Rather than focusing on field carry or weather sealing, the E-50 series is designed around bench use, transport in a range bag, and efficient shelf storage.

About the MTM Ammo Box 38-357 50rd Slip Sq.Hole

The MTM Ammo Box 38-357 50rd Slip Sq.Hole is a compact cartridge box made for shooters using .38 Spec., .357 MAG, and .38 Auto Colt. Its 50-round format is especially practical because it mirrors the common quantity of boxed handgun ammunition and gives handloaders a neat way to separate different bullet weights or load recipes. For revolver and pistol shooters alike, that means less loose ammunition in a bag and faster setup at the range.

This model uses MTM’s slip-top configuration, which favors quick access and a low-profile shape. A sliding lid keeps the box easy to open on the bench while avoiding the extra height of a flip-top hinge. Inside, the square-hole tray holds cartridges upright in individual positions, helping prevent rounds from shifting into each other and making visual round counts much easier. That is useful both for reloaders tracking prepared batches and for shooters who want a cleaner, more organized loading routine.

The box is built from plastic, keeping weight low while still standing up to regular handling in storage or transport. With a length of 152.00 mm and height of 76.00 mm, it remains easy to stack, store, or fit into a range bag alongside other shooting accessories. As a cartridge box for short handgun ammunition, it is a practical solution for keeping commonly used .38 and .357 loads protected, separated, and ready for use.

About MTM

MTM Molded Products Company began in 1968 in Dayton, Ohio, and it remains a family-run manufacturer producing its goods in Dayton. The company focuses on practical equipment for shooting sports, hunting, and outdoor use, with a product range that includes ammunition boxes, ammo cans, firearm cases, and other shooting accessories. That long specialization in molded storage products is directly relevant to cartridge boxes such as the E-50 series, where simple design, repeatable fit, and durable materials matter more than unnecessary complexity.

Beyond shooting equipment, MTM also manufactures products for archery, reloading, camping, hiking, fishing, and overlanding. Its catalog reflects a long emphasis on functional field and storage gear, and the company expanded its firearms case lineup with products such as the 806 single-handgun case in 1986 and the 808 case in 1987. This background gives MTM a well-established place in the market for practical American-made storage and transport accessories.

Main Features

• Manufacturer: MTM
• Made in: USA
• Product type: Cartridge box
• Capacity: 50 rounds
• Compatible cartridges: .38 Spec., .357 MAG, .38 Auto Colt
• Box style: Slip-top
• Hole style: Square hole
• Material: Plastic
• Length: 152.00 mm
• Height: 76.00 mm
• Accessory for: Ammunition

Warranty

MTM provides a 2-year warranty for this ammunition box. That coverage period suits a simple storage accessory intended for regular range use, transport, and routine ammunition organization.