The Lyman Cleaning Jag .50 Cal (MPN: 6030120) is a dedicated bore maintenance accessory engineered for .50 calibre black powder muzzleloaders and firearms. Machined from solid brass, this jag threads onto a compatible cleaning rod or muzzleloader ramrod to press solvent-soaked, dry, or oiling patches firmly against the internal rifling lands and grooves. Sized specifically to .50 cal bore dimensions, it enables thorough removal of corrosive black powder fouling while protecting internal barrel steel from abrasion during routine cleaning and long-term storage preparation.

Key Features

• Dedicated .50 Calibre Sizing: Engineered specifically to provide the correct patch tension and surface contact across the interior bore of .50 cal rifles and pistols.
• Solid Brass Construction: Made from durable, corrosion-resistant brass that is softer than firearm barrel steel, preventing scratching, gouging, or rifling wear during deep bore cleaning.
• Black Powder Maintenance: Optimized to push solvent patches down the bore to dissolve black powder residue, followed by dry and protective oiling patches.
• Factory Replacement Design: Serves as the designated factory accessory across Lyman .50 calibre black powder platforms, including the Great Plains Rifle, Trade Rifle, and Great Plains Hunter/Pistol series.

Specifications

• Brand: Lyman
• Manufacturer Part Number (MPN): 6030120
• Calibre Compatibility: .50 Calibre (.50 cal)
• Material: Solid brass
• Firearm Type: Black powder muzzleloaders, rifles, and pistols
• Operation: Manual, non-powered bore cleaning accessory

Who is the Lyman Cleaning Jag .50 Cal for?

• Muzzleloader target shooters — Requires precise patch-to-bore contact to scrub out corrosive powder residue between shot strings in .50 calibre barrels, utilizing a solid brass black powder cleaning jag that will not damage delicate match rifling.
• Historical re-enactors — Need an authentic, mechanical maintenance tool to clear heavy black powder fouling from .50 cal muzzleloading platforms without scratching period-correct steel barrels.
• Black powder hunters — Demands corrosion-resistant solid brass construction to apply deep-cleaning solvents and protective oil coats throughout the entire length of a .50 calibre hunting rifle bore after wet outdoor field use.

Less suitable for: Firearm bores smaller than .50 calibre (such as .32, .36, or .45 cal) where the oversized diameter will cause severe bore jamming, or larger bores (such as .54 or .58 cal) where it cannot apply sufficient patch pressure; these applications require calibre-specific jags matched to the exact bore diameter.