I don't usually dry brush, with bronze or nylon. OLD -benchrest guys often have been heard to say... run a wet patch or two( chamber end to muzzel ) , first. I have adhered to this 90% of my cleanings. Usually now , KANO Kroil goes first . If I can't swab with that ...(!) Seafoam , motor treatment for top end. = 1st step. Secondly ,I run patches of Shooters' Choice. I don't know how many rounds go thru your guns ....REM. 40-X is 3 times a year for my usage.