[JavaBrewer]

Do a full normal clean on the revolver. With it disassembled I go over the parts that have burn residue with a lead away cleaning cloth. For the end of the cylinder I wipe heavily with the cleaning cloth and then lightly hit it with a soft dremel polishing wheel. Takes about 5 minutes and all the burn residue is gone.

Frankly though the cylinder end gets residue with every use so I don't really go to a full polish job like that very often - maybe 2x a year.