Your bore brush does the scrubbing - this 12 GA cotton bore mop does everything after. Soak it with solvent to pick up loosened carbon and wad fouling, or use it dry to wipe the bore clean before applying a protective coat of oil. 100% cotton fibers absorb more solvent than a flat patch, giving your 12-gauge barrel fuller bore coverage in fewer passes.
The 12 gauge produces more fouling than any other shotgun gauge - heavier powder charges, larger wads, and more residue per shot. After brushing, a gun cleaning mop soaked in solvent pulls out what the brush broke loose. Follow with a lightly oiled mop to protect the bore between sessions. This two-step finish is what separates a quick wipe-down from a proper bore cleaning.
Reusable - wash with solvent or hot soapy water after each use and let it air dry. Replace when the cotton starts to thin out or no longer fits snugly. A simple shotgun cleaning mop step that makes a real difference in how your gun holds up over time.