Will the KleenBore A187 10 Gauge bore brush fit my standard Australian-market cleaning rod?

Yes, the A187 features a standard American shotgun 5/16"-27 male thread interface. It will screw directly into any standard shotgun cleaning rod available in Australia with a matching female thread, though rifle or pistol rods featuring #8-32 threads will require a thread adapter.

Can I use this 10 gauge brush safely in a 12 gauge shotgun barrel?

No, this brush is specifically sized for 10 gauge shotgun bores at approximately 0.775 inches (19.7 mm). You must not force it into smaller bores like 12 gauge, 16 gauge, or 20 gauge, as the dense straight phosphor bronze bristles and core risk jamming tightly inside the barrel or choke.

Will the phosphor bronze bristles scratch or damage the rifling in my 10 gauge slug barrel?

No, the straight phosphor bronze wire bristles are significantly softer than the steel used in shotgun barrels. This ensures that while it aggressively scrubs away baked-on carbon, lead deposits, and stubborn plastic wad fouling after a heavy day of waterfowl or turkey hunting, it leaves the barrel surface and rifling completely undamaged.

What maintenance is required to keep the KleenBore A187 brush in good condition after outback use?

After cleaning heavy residue from your 10 gauge in the field, rinse the brush thoroughly with solvent or warm soapy water to remove dislodged carbon and lead particles. Allow it to dry completely before storing it in your range bag to prevent oxidation and extend the working lifespan of the bronze bristles.

10 Gauge Bore Brush - KleenBore A187

The KleenBore 10 Gauge Shotgun Phosphor Bronze Bore Brush (Model A187) is a dedicated mechanical barrel cleaning tool engineered specifically for 10-gauge shotgun bores with an approximate nominal bore diameter of 19.7 mm (0.775 inches). Featuring straight, non-crimped phosphor bronze wire bristles with rounded tips, this brush provides rigid scouring action to break up burnt powder, carbon fouling, lead deposits, and stubborn plastic wad residue without abrading or scratching smoothbore or rifled shotgun steel.

Key Features

Phosphor Bronze Bristle Construction: Features straight, non-crimped phosphor bronze wire bristles that resist bending and collapsing under pressure, providing thorough scouring action while remaining softer than barrel steel.
Aggressive Fouling Removal: Effectively strips carbon, burnt powder residue, lead, and plastic wad buildup from 10-gauge chambers, forcing cones, and shotgun bores.
Industry-Standard Interface: Equipped with a standard American shotgun 5/16"-27 male thread attached to a twisted wire core, offering direct compatibility with standard shotgun cleaning rods.
Mechanical Non-Powered Operation: Operates entirely manually as a non-powered bore maintenance tool, requiring no external power or electrical adapters.

Product Specifications

Manufacturer Part Number: A187
Calibre/Gauge Compatibility: 10 Gauge (~19.7 mm / 0.775 in nominal bore diameter)
Thread Interface: 5/16"-27 male shotgun thread
Bristle Material: Straight phosphor bronze wire with rounded tips
Core Design: Twisted wire core with threaded coupler
Operation Type: Manual push/pull bore cleaning accessory

Who is the Kleenbore 10 Gauge Phosphor Bronze Bore Brush for?

10-gauge waterfowl hunters — Cleans heavy residue and plastic wad fouling from wide 19.7 mm nominal bore diameter barrels after shooting high-volume, heavy-payload waterfowling loads in the field.
10-gauge turkey hunters — Strips dense lead deposits and powder fouling from 10-gauge barrels and tight choke sections using rigid phosphor bronze bristles that mount securely via a 5/16"-27 male thread.
10-gauge clay target shooters — Provides routine bore maintenance across 19.7 mm shotgun barrels to prevent cumulative plastic buildup without scratching the underlying barrel steel.

Less suitable for: Shotguns chambered in smaller bores including 12 ga, 16 ga, 20 ga, 28 ga, or .410 bore, where this ~19.7 mm oversized core and brush diameter will jam inside the chamber, forcing cone, or choke; for smaller bores, use gauge-matched bore brushes such as a 12-gauge or 20-gauge specific brush. It is also unsuitable for direct attachment to #8-32 rifle/pistol cleaning rods or metric rods without a 5/16"-27 thread adapter.

SKU	KLB40985LP
Model #	A187
Brand	Kleenbore
Shipping Weight	1.0000kg

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Kleenbore A187 10 Gauge Bore Brush Phosphor Bronze 5/16-27 Thread

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