As for shooting in and cleaning,,, clean before shooting and DRY dont leave oil or solvent in the bore,,, fire 2 or 3 then a wipe out, wipe again after 20/25 then leave it alone,,,,,, if you clean them too much every First shot is in a cold bore, r/fs are like cast lead pistol bullets and do leave a trace of lub in the bore,,, this is good stops it rusting and every shot is from the same bore. Stinger,,, after using stinger i do scrub the bore,,, stingers have a copper coat on them that will in time foul the bore, its not a jacket like c/fs but more like copper plateing so does rub off in the