The Hornady 44-45 Cal. Case Neck Brush (Model: 380069) is a dedicated case preparation tool engineered to clean and lubricate the interior case necks of large-bore ammunition. Fitted with durable phosphor-bronze bristles wound on a steel wire stem, this brush removes powder fouling, carbon build-up, and foreign particles from inside cartridge necks without abrading the brass. In addition to scrubbing away combustion residue, it is designed to apply dry lubricants, such as graphite or powdered mica, to the inner neck walls. This dry application prevents brass galling and neck stretching over expander balls during sizing, ensuring uniform neck tension and consistent bullet seating.

Key Features

• Calibre-Specific Fit: Sized specifically for internal bore diameters between .44 and .45 calibre (nominally .429″ to .458″) to provide complete, even bristle contact against the case mouth and walls.
• Phosphor-Bronze Bristles: Resilient bronze wire construction cleans away hard carbon fouling while preserving the interior brass surface integrity.
• Universal 8-32 Thread: Features an industry-standard 8-32 male thread for direct compatibility with threaded manual handles, case prep multi-tools, and motorised prep stations.
• Dry Lubricant Application: Facilitates the distribution of dry powdered lubricants into case necks to minimise friction and stretching across expander balls.
• Mechanical Operation: Operates as a completely passive, unpowered accessory, requiring no electrical supply or external adaptors to function.

Product Specifications

• Product Model: 380069
• Cartridge Compatibility: .44 to .45 calibre (covering cartridges such as .44 Special, .44 Magnum, .45 ACP, .45 Colt, .454 Casull, and .45-70 Government)
• Bristle Material: Phosphor-bronze / bronze
• Stem Material: Steel wire core
• Mounting Interface: Standard 8-32 male thread
• Net Tool Weight: Approximately 9 g (0.02 lb)
• Tool Compatibility: Hornady Lock-N-Load Case Prep Trio, Hornady Case Prep Duo, Hornady Power Case Prep Center, Hornady Quick Change Hand Tool handle, and generic 8-32 female receiver handles

Who is the Hornady 44-45 Cal. Case Neck Brush for?

• Reloaders processing .45 ACP, .45 Colt, or .45-70 Government cartridge cases — requires a reloading case neck brush scaled specifically to internal neck diameters from .429″ to .458″ to scrub away combustion residue and distribute dry lubricant evenly across the brass walls.
• Handloaders reloading .44 Magnum and .44 Special rifle or handgun ammunition — utilises the standard 8-32 male thread to mount directly to motorized case prep stations or manual tool handles for cleaning .44 calibre internal case necks.

Less suitable for: Handloaders processing brass with internal neck diameters smaller than .44 calibre (such as .22, 6mm, or .30 calibre) where the oversized bristles will crush or jam, or calibres larger than .45 (such as .50-calibre brass) where bristles cannot maintain adequate internal wall contact; these applications require a calibre-specific smaller or larger case neck brush.