Brownells J-B Non-Embedding Bore Cleaning Compound is an abrasive oil paste made to cut through copper jacket fouling, powder residue, and moly fouling without damaging rifling. Its cushioned, non-embedding action lifts stubborn buildup from the bore and then wipes out cleanly, helping prevent abrasive residue from remaining after you’re done.
Key Features
Non-embedding abrasive paste that cleans without leaving abrasive residue in the bore
Targets copper jacket fouling and burned-on powder buildup
Works on moly-fouled barrels where tougher residue can be difficult to remove
Oil-paste consistency helps cushion abrasive action during scrubbing
Helps clean without harming rifling and is described as safe for stock finishes
Bring stubborn fouling under control with J-B, a long-running benchrest and gunsmith favorite for bringing dirty bores back to a clean working surface.
