What thread size does the Pro-Shot J6B use, and will it fit my existing cleaning rod?

The Pro-Shot J6B features a standard American #8-32 male thread. It is natively compatible with major cleaning rod brands sold in Australia such as Pro-Shot, Dewey, Hoppe's, and Tipton that accept #8-32 female threads, though it will not fit small-bore #5-40 rods without an adapter.

Can I use the Pro-Shot J6B with aggressive ammonia-based copper solvents?

Because the J6B is precision-machined from solid brass, aggressive ammonia-based copper-removing solvents will react with the material and cause blue discolouration on your patches, leading to false copper fouling readings. If you frequently use heavy copper solvents, you may want to consider a nickel-plated or polymer jag instead.

What size cleaning patches should I use with this 6mm benchrest jag?

This jag is designed to pair perfectly with standard 1-inch to 1-1/8-inch square or round cotton flannel patches, such as Pro-Shot 100% cotton flannel patches. The spear-point design centrally pierces and anchors the patch to prevent bunching or tearing as it moves through your 6mm bore.

6mm Cleaning Jag - Pro-Shot J6B

The Pro-Shot Spear Pointed Benchrest Jag 6mm (Model J6B) is a dedicated rifle maintenance tool engineered for precise bore cleaning in 6mm and .243 calibre firearms. Machined from solid brass, this benchrest-grade jag uses a sharp spear point to pierce and anchor standard cotton cleaning patches squarely in the centre. This design prevents patch bunching, tearing, or slip-off inside the barrel, ensuring the patch applies consistent 360-degree radial pressure across the bore's lands and grooves to effectively strip powder fouling and apply solvents without damaging the firearm's crown or rifling.

Key Features

Spear-Point Patch Anchoring: Centrally pierces patches to keep them firmly positioned, eliminating slippage and uneven bunching during cleaning strokes.
Concentric Bore Grooving: Precision-cut grooving provides uniform 360-degree contact against the barrel wall for thorough solvent application and dry-patching.
Calibre-Specific Machining: Dedicated specifically to 6.0 mm (.243") bore dimensions for an exact mechanical fit.
Calibre-Stamped Base: Clearly marked with "6mm" on the brass base for quick identification in workshops and range kits.
Non-Abrasive Solid Brass Construction: Machined from solid brass to safeguard the rifling, throat, and muzzle crown from mechanical wear during maintenance.

Product Specifications

Calibre Compatibility: 6mm / .243 calibre (e.g., 6mm Creedmoor, 6mm BR, 6mm ARC, .243 Winchester, .243 WSSM)
Thread Interface: Standard American #8-32 male thread
Material: Precision-machined solid brass
Length: Standard benchrest profile (~45 mm to 50 mm total length)
Weight: Approximately 15 g to 20 g
Recommended Patch Sizing: Standard 1" to 1-1/8" square or round cotton flannel patches

Who is the Proshot Spear Pointed Benchrest Jag 6mm for?

6mm Benchrest and Target Competitors — Delivers complete 360-degree concentric patch contact across dedicated 6.0 mm bore lands and grooves using precision-machined solid brass that prevents throat and crown wear during intensive match cleaning routines.
6mm Creedmoor and .243 Winchester Hunters — Connects natively to standard #8-32 threaded cleaning rods to drive 1" to 1-1/8" flannel patches through .243 calibre hunting rifle barrels without patch slip or bunching.

Less suitable for: Firearm bores under 6.0 mm (.243") diameter, such as .22 calibre or 5.56mm barrels, where this jag will jam; use a dedicated .22 calibre cleaning jag instead. It is also unsuitable for cleaning rods with small-bore #5-40 threads or shotgun #5/16-27 threads without dedicated thread adapters.

SKU	PS41338LP
Model #	J6B
Brand	Pro-Shot
Shipping Weight	1.0000kg

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Pro-Shot J6b Spear Pointed Benchrest Jag 6mm Brass

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