Will this ammo box fit standard .22 LR rounds or is it strictly for .22 WMR and .17 HMR?

This box is strictly engineered for .22 WMR and .17 HMR cartridges up to a maximum overall length of 1.75 inches. Standard .22 LR rounds are shorter and will rattle or shift incorrectly in this specific insert depth, so you should use the dedicated P-100-22 model for .22 LR.

How does the MTM P-100-22M hold up during dusty and rough outback pest control trips?

The scuff- and scratch-resistant textured polypropylene body provides a secure non-slip grip in the field while keeping out dust and light moisture. It features a mechanical hinge backed by a 25-year manufacturer guarantee and a secure Snap-Lok latch to prevent accidental spills during bumpy vehicle transport across Australian properties.

Does this ammo box comply with Australian firearm storage regulations on its own?

No, while this box effectively organises 100 rounds of rimfire ammunition and protects them from field elements, it is not a standalone locked safe. Under state and territory firearms legislation across Australia, ammunition must be stored in a locked container or safe separate from your firearms when not in direct use.

Can I stack multiple P-100 boxes securely on top of each other in my vehicle or safe?

Yes, the base of each box is designed with integrated stacking feet that neatly nest into the matching lid pattern of other MTM P-100 series boxes. This prevents sliding and creates a stable stack when you are organising multiple calibres for range sessions or hunting trips.

Rimfire Ammo Box - MTM Case-Gard P-100-22M-29

The MTM Case-Gard P-100-22M-29 is a dedicated rimfire ammunition storage box designed to organise and protect up to 100 rounds of .22 Winchester Magnum Rimfire (.22 WMR) and .17 Hornady Magnum Rimfire (.17 HMR) ammunition. Engineered from durable polypropylene with a textured, scuff-resistant exterior, it replaces fragile factory cardboard packaging with a secure hard-shell case for transport and field use. The box features an integral mechanical hinge, a secure Snap-Lok latch to prevent accidental spills, and an exterior stacking footprint that nests securely with other P-100 series cases.

Key Features

100-Round Capacity: Holds two full boxes of rimfire magnum ammunition stored bullet-tip up.
Snap-Lok Latch: Positive closure mechanism designed to prevent accidental opening during transit in range bags or vehicle gloveboxes.
Moulded Stacking Base: Integrated feet nest directly into the lid pattern of other P-100 boxes for stable vertical storage.
Textured Surface: Scuff- and scratch-resistant exterior provides a non-slip grip in wet or dusty field environments.
Data Label Included: Supplied with an adhesive load-labelling sticker for tracking batch details, bullet weights, or purchase dates.

Product Specifications

Manufacturer Part Number (MPN): P-100-22M-29
Capacity: 100 rounds
Calibre Compatibility: .22 WMR (.22 Magnum), .17 HMR
Maximum Cartridge Overall Length (OAL): Up to 1.75 in (approx. 44.45 mm)
Dimensions: Approximately 3.95" L x 3.95" W x 1.57" H (approx. 10.0 cm x 10.0 cm x 4.0 cm)
Material: Polypropylene
Power Requirements: Passive (non-powered)
Country of Origin: USA

Who is the MTM 100-Round Rimfire Magnum Ammo Box for?

Varmint Hunters and Pest Controllers — needs crush-resistant ammunition protection in the field, carrying a full 100-round capacity of .22 WMR or .17 HMR cartridges securely without loose rounds tearing through factory cardboard cartons.
Rimfire Target and Benchrest Shooters — requires structured organisation at the firing line, utilising a dedicated rimfire ammunition storage box tailored to rounds with a maximum overall length of up to 1.75 in (44.45 mm) for rapid, uniform access during shooting strings.

Less suitable for: Standard .22 LR cartridges, which are too short for this cavity depth and will rattle or shift (requiring a shorter-depth rimfire case), centre-fire cartridges exceeding a 1.75-inch (44.45 mm) overall length (requiring larger centre-fire rifle ammo boxes), or situations requiring complete water submersion (which require an O-ring gasketed dry box or sealed ammo can).

SKU	MM41143LP
Model #	P-100-22M-29
Brand	Mtm Case-Gard
Shipping Weight	1.0000kg

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Mtm Case-Gard P-100-22m-29 Ammo Box 100 Round Clear Red

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