I shoot B.P.C.R.'s and swab the barrel between shots. I have been using what people call "Moose Milk" and was told the best mix was 20 : 1 Ballistol and water. I have been hearing all kinds of mixes with Ballistol, machine oil, Murphy's soap. Dawn etc., I have tried straight water but the patch's are sometimes tough going down barrel. What should I be looking for in a patch dampener ?.