What cleaner do you use to swab your barrel at the range when using bore butter? I know you can not use a petroleum base because it will break down the bore butter. I heard that the No. 13 bore cleaner will cause flash rust. Would the citric acids in cabelas all natural citrus solvent break it down or should I be fine using that. It is a good solvent but I don't know if the acids will effect the bore butter. I am sure there isn'tthat much citric acid in the solvent. What do you all think or use?