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Availability: In Stock
Keep your magnum rifle ammunition organized and protected with the MTM Slip-Top Ammo Box for 7mm Rem Mag, 300 Win Mag, and 375 H&H. This 20-round storage case is built from durable polypropylene that stands up to field use without warping, cracking, or deteriorating—whether you're rotating between loads at the range or managing specialty handloads for different hunting situations. The compact slip-top design slides easily into a jacket or pack pocket, so you can carry exactly what you need without extra bulk.
Magnum cartridges demand respect and organization. Whether you're running multiple barrel harmonics, testing powder charges, or keeping factory and custom loads separate, this MTM case keeps rounds visible and secure. The rigid construction protects against pressure and temperature swings that can happen over a season, and the straightforward top-loading access means no fumbling when you need to swap rounds in the field.
MTM ammunition boxes are trusted by rifle shooters worldwide because they do one job exceptionally well: store and protect centerfire ammo without fuss. This isn't fancy, but it's built to last and proven in the field—exactly what working ammo storage should be.
| Brand | MTM Case-Gard |
| Product Line | J-20 Series |
| Capacity | 20 rounds |
| Compatible Calibers | 7mm Rem Mag, 300 Win Mag, 375 H&H |
| Material | Polypropylene |
| Top Design | Slip-top |
This MTM box is sized specifically for 7mm Rem Mag, 300 Win Mag, and 375 H&H. If you shoot a different magnum or standard rifle caliber, check the MTM lineup for the appropriate box—they make different case models for various cartridge sizes and shapes.
Yes. The slip-top design and compact size are built for pocket carry during hunting, so you can easily bring extra rounds or rotate between loads without needing a full ammo bag.
MTM polypropylene cases are designed to resist warping, cracking, and temperature-related expansion or contraction, making them suitable for stable, protected storage. For long-term storage, keep them in a cool, dry location as you would any ammunition.
Yes—that's one of the main reasons shooters use these cases. The 20-round capacity and straightforward design make it easy to organize and keep different loads visually separated.
SKU: 115720600 • Width: 3.9in • Height: 1.6in • Depth: 6.8in • Weight: 0.31oz
Availability: In Stock
Keep your magnum rifle ammunition organized and protected with the MTM Slip-Top Ammo Box for 7mm Rem Mag, 300 Win Mag, and 375 H&H. This 20-round storage case is built from durable polypropylene that stands up to field use without warping, cracking, or deteriorating—whether you're rotating between loads at the range or managing specialty handloads for different hunting situations. The compact slip-top design slides easily into a jacket or pack pocket, so you can carry exactly what you need without extra bulk.
Magnum cartridges demand respect and organization. Whether you're running multiple barrel harmonics, testing powder charges, or keeping factory and custom loads separate, this MTM case keeps rounds visible and secure. The rigid construction protects against pressure and temperature swings that can happen over a season, and the straightforward top-loading access means no fumbling when you need to swap rounds in the field.
MTM ammunition boxes are trusted by rifle shooters worldwide because they do one job exceptionally well: store and protect centerfire ammo without fuss. This isn't fancy, but it's built to last and proven in the field—exactly what working ammo storage should be.
| Brand | MTM Case-Gard |
| Product Line | J-20 Series |
| Capacity | 20 rounds |
| Compatible Calibers | 7mm Rem Mag, 300 Win Mag, 375 H&H |
| Material | Polypropylene |
| Top Design | Slip-top |
This MTM box is sized specifically for 7mm Rem Mag, 300 Win Mag, and 375 H&H. If you shoot a different magnum or standard rifle caliber, check the MTM lineup for the appropriate box—they make different case models for various cartridge sizes and shapes.
Yes. The slip-top design and compact size are built for pocket carry during hunting, so you can easily bring extra rounds or rotate between loads without needing a full ammo bag.
MTM polypropylene cases are designed to resist warping, cracking, and temperature-related expansion or contraction, making them suitable for stable, protected storage. For long-term storage, keep them in a cool, dry location as you would any ammunition.
Yes—that's one of the main reasons shooters use these cases. The 20-round capacity and straightforward design make it easy to organize and keep different loads visually separated.
SKU: 115720600 • Width: 3.9in • Height: 1.6in • Depth: 6.8in • Weight: 0.31oz
