The Kleenbore Rifle .44-.45 Phosphor Bronze Bore Brush (Model A182) is a dedicated mechanical cleaning accessory engineered to scrub powder fouling, carbon residue, and metal deposits from large-bore rifle barrels. Built with heavy-duty straight phosphor bronze bristles wound into a twisted wire core with a looped end, it maintains radial rigidity to scour lands and grooves thoroughly without abrading barrel steel. Fitted with an industry-standard #8-32 male thread, this non-powered maintenance brush threads directly onto standard rifle and handgun cleaning rods.

Key Features

• Heavy-Duty Phosphor Bronze Bristles: Provides effective mechanical scrubbing to dislodge stubborn lead, copper, and carbon fouling while remaining softer than barrel steel to protect rifling edges.
• Straight-Wire Construction: Utilises non-crimped, straight wire bristles to achieve high bristle density, preventing the brush from bending or collapsing under axial cleaning pressure.
• Looped Core End: Features a twisted wire core with a smooth looped tip to prevent sharp wire ends from scratching the barrel crown or chamber walls during insertion.
• Industry-Standard Interface: Equipped with a standard #8-32 male thread for direct compatibility with standard centerfire rifle cleaning rods and pull-through systems.

Specifications

• Model / MPN: A182
• Category: Rifle bore brush
• Calibre Compatibility: .44 to .45 calibre (.429" to .458" nominal bore diameter, including .44 Rem Mag, .44-40, .45-70 Gov, .450 Bushmaster, and .458 Win Mag)
• Bristle Material: Phosphor bronze (straight wire)
• Core Style: Twisted wire with looped end
• Thread Pitch: Standard #8-32 male
• Operation: Manual (non-powered)
• Solvent Compatibility: Petroleum- and mineral-based gun oils and standard nitro-solvents

Who is the Kleenbore Rifle .44-.45 Phosphor Bronze Bore Brush for?

• Large-bore rifle shooters — cleans firearm bores spanning nominal diameters from .44 to .45 calibre (such as .458 Win Mag and .450 Bushmaster) using a heavy-duty phosphor bronze rifle bore brush that fits directly onto standard #8-32 threaded cleaning rods.
• Handloaders and target shooters — scrubs high-volume powder fouling, lead, and carbon residue out of .45-70 Gov and .44 Magnum rifle barrel rifling without damaging steel lands and grooves, utilising straight phosphor bronze bristles designed for large-bore rifle bore brush applications.

Less suitable for: Barrels smaller than .44 calibre or larger than .45 calibre (which require dedicated smaller-diameter or larger-gauge brushes to prevent rod binding or inadequate bore contact), cleaning rods with #5-40, #3-48, or #5/16-27 threads without thread adapters, or bore-cleaning regimes using aggressive ammonia-based copper removers (which rapidly break down bronze bristles and require a chemically resistant nylon bore brush instead).