What specific calibres are compatible with the MTM BMG10-40 ammo box beyond .50 BMG?

This box is specifically engineered to fit ultra-large calibres including .50 BMG, .50 DTC, .460 Steyr, HS .460, and .416 Barrett. Standard large-rifle cartridges like .338 Lapua Magnum are too loose for this specific insert and require a different MTM series.

Does the slip-top design protect custom loaded projectile tips during transport?

Yes, the box features an internal moulded contour that supports cartridges at the case shoulder rather than the tip. This prevents standard overall length (OAL) projectile tips from bottoming out, preserving ballistic meplat integrity during trips to the range.

Is the Mtm Slip-Top Rifle Ammo Box waterproof for use in wet Australian bush conditions?

No, this is a friction-fit slip-top box constructed from rugged polypropylene and does not feature an O-ring seal. While it resists moisture, oils, and chemical cleaners, it is not submersible, airtight, or watertight, so it should be kept dry during wet weather transit.

Are there any specific Australian transport regulations I need to follow when using this 10-round ammo box?

While the BMG10-40 is an unclassified plastic accessory requiring no electrical or SAA/RCM certifications, Australian shooters must comply with state and territory firearms legislation. This typically means carrying ammunition in locked, separate compartments away from the firearm during transit.

50 BMG Ammo Box - MTM BMG10-40

The MTM Case-Gard BMG10-40 Slip-Top Rifle Ammo Box is a dedicated, passive polymer storage container engineered to secure and transport 10 rounds of large-calibre extreme long range (ELR) ammunition. Manufactured from rugged polypropylene in a black finish, the case incorporates a smooth slip-on lid for rapid access at the shooting bench. Its interior uses moulded shoulder-support contours that suspend cartridges by the case shoulder, preventing projectile meplats and ballistic tips on standard overall length (OAL) rounds from bottoming out and deforming against the base.

Key Features

Moulded Shoulder Support: Suspends cartridges at the shoulder to isolate and protect fragile projectile tips during transit.
Friction Slip-Top Lid: Removable lid design provides fast, two-piece benchtop access without hinged lids crowding shooting space.
Rugged Polypropylene Construction: Resists moisture, cleaning solvents, and gun oils for durable transport use.
Dedicated Large-Calibre Profiling: Precision-moulded to house .50 BMG, .50 DTC, .416 Barrett, .460 Steyr, and HS .460 ammunition.

Specifications

Capacity: 10 rounds
Dimensions: 5.06″ W × 4.75″ L × 2.0″ H (approx. 12.85 cm × 12.06 cm × 5.08 cm)
Calibre Compatibility: .50 BMG, .50 DTC, .416 Barrett, .460 Steyr, HS .460
Material: Polypropylene
Colour: Black (Colour Code -40)
Manufacturer Part Number (MPN): BMG10-40

Who is the MTM Slip-Top 10-Round .50 BMG Ammo Box for?

Extreme long range target shooters transporting ladder test reloads — relies on the 10-round capacity of this 50 BMG rifle ammo box to isolate small-batch developmental loads and ladder tests while protecting ballistic meplats from transit damage.
ELR competitors requiring compact benchtop ammunition organization — benefits from the 5.06″ W × 4.75″ L × 2.0″ H footprint of this 50 BMG rifle ammo box, which delivers convenient access to 10 rounds of match ammunition without occupying unnecessary space on a crowded shooting bench.

Less suitable for: Shooters requiring storage for more than the strict 10-round capacity limit or requiring airtight and watertight submersion protection, who require a bulk utility ammo crate with a rubber O-ring seal.

SKU	MM41126LP
Model #	BMG10-40
Brand	Mtm Case-Gard
Shipping Weight	1.0000kg

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Mtm Bmg10-40 Rifle Ammo Box 50 Bmg 10 Round Black

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