What is the dilution ratio and how many washes can I get out of a 1-gallon jug of the Hornady 043356 Sonic Solution?

The recommended mixing dilution ratio for this solution is 40 parts water to 1 part solution. A single 1-gallon jug yields up to 256 cleaning washes, depending on the capacity of your ultrasonic cleaner reservoir.

Can I use this cleaning solution on nickel-plated brass or firearm parts like slides and actions?

No, this formula is strictly designed for raw, uncoated brass cartridge cases. Manufacturer guidelines warn against using it on nickel-plated cases, gun actions, slides, optics, painted components, or aluminium.

Will this ultrasonic solution give my brass cartridge cases a high-gloss, mirror finish?

No, ultrasonic cleaning with this solution chemically removes carbon build-up, tarnish, and primer residue from both internal and external surfaces, but it does not produce a high-gloss, mirror polish. If a high-polish finish is desired, you will need to follow up with a vibratory dry tumbler or rotary tumbling with stainless steel media.

Are there any special water recommendations or storage considerations for Australian users dealing with hot weather and hard water?

Distilled or demineralised water is strongly recommended in Australia to prevent hard-water mineral spotting on your brass cases during the drying process. Additionally, you should protect the liquid concentrate from freezing and avoid exposing it to extreme heat during storage or transport across regional outback routes.

Case Cleaner Solution - Hornady 043356

The Hornady One Shot Sonic Clean Cartridge Case Solution (1 Gallon, MPN 043356) is a concentrated, biodegradable chemical cleaning solution engineered specifically for cleaning raw brass cartridge cases. Formulated for use in ultrasonic cleaners—such as the Hornady Lock-N-Load Sonic Cleaner series—and rotary wet tumblers, it chemically strips carbon fouling, primer residue, tarnish, and oxidation from both the interior cavity and external walls of fired brass. The concentrate requires mixing with water at a precise 40:1 ratio, enabling a single bulk jug to service high-volume reloading workflows across hundreds of wash cycles.

Key Features

High-Dilution Yield: Formulated for a 40:1 mixing dilution ratio (40 parts water to 1 part concentrate, or roughly 0.5 fl oz per 20 fl oz of water), delivering up to 256 cleaning washes per container depending on reservoir size.
Internal and External Case Cleaning: Chemically penetrates decapped primer pockets and internal flash holes to dissolve baked-on carbon residue and primer combustion by-products.
Hardware Versatility: Engineered to function in ultrasonic cleaning tanks as well as rotary wet tumblers, with or without stainless steel tumbling pins.
Non-Toxic Formulation: Uses a biodegradable chemical formula designed to clean bare cartridge brass without harsh toxic fumes during heated ultrasonic cycles.

Product Specifications

Manufacturer Part Number (MPN): 043356
Volume: 1 US Gallon (128 fl oz / ~3.785 Litres)
Dilution Ratio: 40:1 (water to concentrate)
Total Wash Capacity: Up to 256 washes
Compatible Substrates: Uncoated, raw cartridge brass
Container Dimensions: Approximately 12.0" H × 7.0" W × 4.25" L (30.5 cm × 17.8 cm × 10.8 cm)
Shipping Weight: Approximately 9.6 lbs (~4.35 kg)

Who is the Hornady Lock N Load Sonic Solution 1 Gallon for?

High-volume handloaders and competitive reloaders — requires a bulk supply that delivers up to 256 cleaning washes from a single 1 US Gallon (128 fl oz) container using a 40:1 dilution ratio, minimising per-batch fluid costs during bulk brass prep.
Precision shooters — provides targeted chemical removal of primer residue and carbon build-up from internal flash holes and primer pockets within a 5- to 30-minute ultrasonic wash cycle, ensuring consistent seating depths and internal case volumes without mechanical abrasion.

Less suitable for: Reloaders seeking a high-gloss, mirror finish on their brass, as this ultrasonic brass cleaning solution chemically cleans without mechanical polishing; high-lustre aesthetics require a vibratory dry tumbler running treated corncob or walnut media, or rotary wet tumbling with stainless steel pins. It is also unsuitable for nickel-plated brass cases, aluminium components, optics, firearm actions, slides, or painted parts; gun mechanisms require a dedicated firearm parts cleaning solution.

SKU	HN42499LP
Model #	043356
Brand	Hornady
Shipping Weight	1.0000kg

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Hornady 043356 Sonic Clean Solution 1 Gallon

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