The Proshot Cotton Mop .50 Cal. Black Powder #10/32 Threads is a dedicated firearm maintenance accessory engineered specifically for cleaning and protecting .50 calibre (nominal 12.7 mm bore diameter) black powder barrels. Constructed from 100% natural cotton wound around a reinforced solid brass core, this mop provides high absorbency for swabbing out fouling between shots, applying bore conditioners, and drying washed barrels before storage. Its integrated brass coupling features standard #10-32 black powder threading, allowing direct attachment to compatible muzzleloader ramrods and range rods without the need for thread adapters.

Key Features

• 100% Natural Cotton Construction: Absorbs solvents, hot water, and oils rapidly to coat rifling lands and grooves or remove loose fouling.
• Black Powder #10-32 Threads: Connects directly to standard #10-32 threaded black powder cleaning rods and range rods.
• Reinforced Brass Core: Features a solid brass core wound securely through a threaded brass coupling to prevent detachment during repeated bore passes.
• Non-Powered Mechanical Operation: Requires no electrical power or batteries, operating as a purely mechanical cleaning tool.

Specifications

• Calibre Compatibility: .50 Calibre (nominal 12.7 mm bore diameter)
• Thread Pitch: #10-32
• Mop Material: 100% Cotton
• Core and Coupling Material: Solid Brass
• Unit Weight: Under 30 grams

Who is the Proshot Cotton Mop .50 Cal. Black Powder #10/32 Threads for?

• .50 calibre muzzleloading target shooters — requires full-diameter bore contact to swab out corrosive black powder and substitute fouling between shooting strings using a .50 calibre cotton bore mop that threads directly onto standard #10-32 cleaning rods.
• Traditional black powder hunters using .50 calibre rifles — requires applying protective oils, bore conditioners, or rust inhibitors evenly across .50 calibre rifling lands and grooves using an absorbent cotton mop weighing under 30 grams for easy field-kit carry.
• Historical re-enactors maintaining .50 calibre muzzleloaders — requires drying out washed barrels and soaking up hot soapy water after field demonstrations using a dedicated .50 calibre cotton bore mop with a reinforced brass core wound to #10-32 threads.

Less suitable for: Firearm barrels smaller than .50 calibre (such as .45 cal or smaller) where the oversized diameter creates severe binding risks, barrels larger than .50 calibre (such as .54 or .58 cal) where it cannot maintain full-diameter wall contact, standard centerfire rods featuring #8-32 or #5-40 threads without an adapter, or hard mechanical scraping of heavy lead and copper fouling, which requires a bronze or nylon bore brush.