The Proshot 54 Cal Black Powder Bore Brush is a dedicated, heavy-duty firearm maintenance tool designed to scrub and lift stubborn black powder, Pyrodex, Triple Seven fouling, and lead deposits from .54 calibre muzzleloader barrels. Built with a solid brass core wound directly through the threaded coupling, this brush eliminates bristle loss and core separation when changing direction during cleaning strokes. Its phosphor bronze bristle design provides an aggressive mechanical scrub while maintaining a softer profile than firearm barrel steel, protecting the lands, grooves, and muzzle crown from surface abrasion.

Key Features

• Calibre-Matched Cleaning: Sized specifically for .54 calibre bores to ensure full, even bristle contact against internal rifling.
• Phosphor Bronze Bristles: Delivers durable scrubbing power to break down baked-on powder fouling, corrosive residue, and lead build-up without scratching steel barrels.
• Looped Core Construction: Features a solid brass core that is looped at the end and wound through the coupling to prevent unraveling during rigorous pushing and pulling.
• Muzzleloader Thread Standard: Outfitted with an industry-standard #10-32 male thread designed to mount directly to dedicated black powder cleaning rods, range rods, and ramrods.

Product Specifications

• Category: Muzzleloader bore brush
• Calibre Compatibility: .54 calibre
• Thread Interface: #10-32 male thread
• Bristle Material: Phosphor bronze
• Core Material: Solid brass (looped end)
• Coupling Material: Solid brass
• Operation Type: Manual / non-powered
• Weight: Approximately 10.4 g to 15.9 g

Who is the Proshot 54 Cal Black Powder Bore Brush for?

• .54 Calibre Muzzleloader Hunters — Requires a heavy-duty muzzleloader bore brush engineered to scrub corrosive powder residue out of .54 calibre rifle barrels using a robust #10-32 male thread that connects natively to heavy-duty field ramrods.
• Black Powder Target Shooters and Historical Reenactors — Relies on durable phosphor bronze bristles to aggressively lift lead deposits and fouling from .54 calibre traditional or modern barrels during post-shoot maintenance routines without damaging rifling lands.

Less suitable for: Barrels measuring smaller or larger than .54 calibre (use exact diameter-matched brushes to prevent bore jamming or loose contact), modern centrefire rods requiring #8-32 or #5-40 threads (requires a thread adapter), or deep-cleaning routines using aggressive ammonia-based copper-removing solvents (opt for a calibre-matched nylon bore brush to prevent chemical breakdown of bronze bristles).