What capacity suits a cartridge safety case for range carry?

Answer: 12 to 18 L, loaded under 18 kg so 50 m needs no hand change; above that, a 25 L class carried by two.

Does store binning need a calibre split?

Answer: Yes. Dividers step at 25 mm, one calibre per cell, and stocktakes count cells, not rounds.

What identification should an issued case carry?

Answer: Number, card pocket and lot, so a change of custodian needs no verbal briefing.

What does humid storage add?

Answer: 30 g of desiccant, a 40 percent indicator card and 30 percent gasket squeeze, checked weekly.

Can a sample and a shipping unit share a model?

Answer: Same mould, different fittings: a window for the sample, a closed lid and guards for shipping.

Cartridge Safety Case Applications: Scenes and Fittings

Quick answer: A cartridge safety case works in five settings: range carry, store room bins, agency issue, retail display and transport. Each one pulls capacity, empty weight, insert style and latch design in a different direction, so name the scene first and let dimensions follow.

Cartridge Safety Case Scenarios and How Fittings Follow
Range Carry: Truck to Firing Point
Store Room Binning by Lot and Calibre
Agency Issue and Humid Storage
Retail Display versus Transport Stacking
FAQ

1. Cartridge Safety Case Scenarios and How Fittings Follow

A range hut and a store room ask different things of one box: whether the handle cuts the hand, or how many units fit a shelf and whether the label reads at standing height. Name the scene, then derive capacity, weight and insert.

Five settings differ on four lines: who carries it, how far, how often it opens, and the climate. Past 50 m, each 0.5 kg of empty weight must be paid back in handle width; past 20 cycles a day, latch life outranks wall thickness.

Setting	Capacity	Empty weight	Insert	Key fitting
Range carry	12–18 L	2.2–2.8 kg	Tray	Lid stop
Store bins	25–40 L	3.4–4.2 kg	Grid	Label slot
Agency issue	8–12 L	1.8–2.4 kg	6 cells	Two-action latch
Retail display	6–10 L	1.6–2.0 kg	Clear liner	Window
Transport	30–45 L	3.8–4.6 kg	Divider	Corner guards

Insert space comes out of internal volume: a liner takes 12–18 mm per side and 8 mm in height, so a cartridge safety case sold as 15 L delivers 12 L.

2. Range Carry: Truck to Firing Point

The sequence is fixed: lift from the truck, walk 30–60 m, set the case right of the firing point, open, take one cell, close.

A 28 by 12 mm handle with a 110 mm grip lets a loaded 18 kg case travel 50 m without a hand change. A lid opening to 105 degrees, with two ribs acting as a stop, will not fall back. Each cartridge safety case on site stacks no more than three high, because the fourth tier loads the latches instead of the walls. Sand detail: 12 mm feet that clear grit, and 30 percent gasket squeeze recovering in two seconds.

3. Store Room Binning by Lot and Calibre

In the store the keyword is find it once. Once a cartridge safety case is shelved, retrieval follows the label, not memory, so rack, position and cell numbers sit on one label 15 mm above the front lower edge.

At a 450 mm shelf pitch, six units per level and three levels form a lot column of 18. Labels run 60 by 40 mm, and 25 mm divider steps keep calibres apart in 120 by 90 by 60 mm cells.

Store parameter	Value	Why
Shelf pitch	450 mm	60 mm lid clearance
Units per level	6	Within one-arm reach
Lot column	18 units	Matches a stocktake line
Label	60 by 40 mm	Readable at 2 m
Divider step	25 mm	Covers three calibres

Counting 18 units by cell takes 15 minutes, a barcode pass about 4.

4. Agency Issue and Humid Storage

An issued case travels with a person, so it answers two questions: whose is it, and can it open by accident. Two units per vehicle, six cells of 15 rounds, 4.2 kg loaded, and a two-action latch needing 35 N plus an 8 mm slide, workable through a glove.

Identification sits on the body: an eight-digit laser mark on the lid, matching a handover card in an 85 by 55 mm pocket inside. Humid storage adds 30 days at 40 degrees Celsius and 90 percent humidity, 30 g of desiccant, a 40 percent indicator card, and lids open under 3 minutes. Treating the case as a dry cabinet is the usual error: the gasket blocks outside moisture, but desiccant still handles what is inside, swapped when the card turns.

5. Retail Display versus Transport Stacking

Display and transport pull opposite ways: display wants a case that shows its contents, transport wants one that resists five tiers of load. A cartridge safety case covers both through lid and base.

A sample carries a 2 mm polycarbonate window and 3 mm dust lip, with colour difference within Delta E 1.5 under 400 to 600 lux. Shipping swaps that window for a closed lid and eight corner guards, and 60 units per pallet take 90 kg static for 24 hours with deflection under 2 mm. Sample life counts 5,000 cycles a year, shipping life counts drops: never merge the ledgers.

Conclusion

Scene first, fitting second, dimensions last; reverse that order and every choice is a compromise. Put the scene in the purchase order, and a cartridge safety case follows it.

This article discusses only the container (case body) side of specifications and design intent, and does not cover any handling, loading or use of the contents.