Breakthrough Clean Technologies® Nylon Bristle Bore Brush — .50 Cal | Retail Packaging | Model BT-50NBB | UPC 852712005862

Power through heavy fouling while protecting your bore. The Breakthrough Clean Technologies Nylon Bristle Bore Brush (.50 Cal) pairs solvent-resistant nylon filaments with a precision-wound core for full, 360° contact that scrubs powder residue, carbon, and plastic/wad deposits—without scratching the steel. Arriving in retail packaging that keeps bristles clean and organized, the BT-50NBB is the dependable, bore-safe choice for .50-cal shooters who demand fast, repeatable results.

Why Choose a Nylon Bore Brush for .50 Cal?

• Non-marring performance: Nylon is gentle on rifling, crowns, and muzzle devices—ideal for carbon steel, stainless, and coated/chrome-lined barrels.

• Solvent-ready fibers: Chemical-resistant nylon stands up to aggressive carbon and copper solvents, letting chemistry do the heavy lifting while the bristles dislodge residue.

• Full-contact scrubbing: A dense filament pack and even core wind maintain uniform pressure along the bore for efficient cleaning with fewer passes.

• Durable & long-lasting: Resists deformation over multiple sessions—great for high-round-count shooters, instructors, and club ranges.

• Retail packaged: Sealed presentation protects bristles from dust and shop grime for cleaner storage in your range bag or on a peg wall.

Optimized for Popular .50-Cal Platforms

Ideal for .50 caliber rifles and muzzleloaders, as well as .50-caliber pistol-caliber carbines and large-bore pistols that use .50 cleaning accessories. Whether you’re prepping for hunting season, cleaning after a match, or doing routine maintenance, this nylon brush helps maintain accuracy and reliability.

Key Features at a Glance

• Caliber: .50 Cal

• Bristles: Nylon (solvent-resistant, non-marring)

• Core: Precision-wound shank for straight tracking and consistent drag

• Primary Use: Removes powder/carbon residue and light plastic/lead fouling

• Compatibility: Fits standard .50-cal cleaning rods/adapters (verify thread size for your rod system)

• Model / SKU: BT-50NBB (also listed as BT50NBB)

• UPC: 852712005862

• Packaging: Retail packaging for clean storage and easy display

Faster, Cleaner Results—Without Risking Your Bore

Nylon filaments flex into micro-crevices and machining marks to lift fouling while protecting the bore’s finish. Pre-wet with your preferred solvent, let it dwell briefly, then brush in smooth, full-length strokes. Follow with dry patches and a light oil pass for a bright, uniform finish that resists corrosion.

How to Use (Best Practices)

1. Unload & verify safe. Always check chamber and magazine (or confirm an empty muzzleloader).

2. Pre-wet the bore. Apply solvent with a patch or mop; allow a short dwell to soften deposits.

3. Brush breech to muzzle. Make full-length strokes; avoid reversing direction mid-bore to protect the crown and keep bristles aligned.

4. Repeat as needed. Nylon tolerates robust solvents—reapply for stubborn buildup.

5. Patch & protect. Run dry patches until clean, then finish with a lightly oiled patch before storage.

Pro Tip: Keep two brushes on the bench—one dedicated to solvent scrubbing and the other for quick post-range touch-ups. Rotating brushes preserves filament stiffness and extends service life.

Perfect For

• Big-bore hunting rifles & muzzleloaders exposed to moisture and residue

• Range & competition cleaning between strings or after high round counts

• Gunsmith benches & clubs that need durable, chemical-friendly tools

• Collectors & enthusiasts who prefer a bore-safe, non-metallic brush option

Care & Maintenance

• Rinse in warm water after heavy solvent use; shake or towel-dry.

• Store inside the retail sleeve or a sealed pouch to keep debris off filaments.

• Replace when bristles appear splayed, shortened, or noticeably softened.

Specifications

Compatibility Notes

• Confirm your cleaning rod’s thread size; add a thread adapter if needed.

• Safe with common CLP, carbon cutters, copper solvents, and black powder cleaners—always follow chemical manufacturer instructions.

• For extreme deposits, alternate a few passes with a bronze brush, then return to nylon for routine care.

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Scrub smarter—protect your bore and restore a consistent, high-gloss finish with the Breakthrough Clean Technologies .50-Cal Nylon Bristle Bore Brush.
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