Even if you clean your rifle bore regularly you can still get a build-up of fouling and the same is true of a second-hand rifle if its bore has been neglected.
Normal copper solvents are good, but sometimes a rubbing compound is called for.
Even if you clean your rifle bore regularly you can still get a build-up of fouling and the same is true of a second-hand rifle if its bore has been neglected.
Normal copper solvents are good, but sometimes a rubbing compound is called for.