I use J-B bore cleaner paste followed up with KleenBore #10 copper cutter. I used Hoppes #9 for years until a local gunsmith turned me on to J-Bs. He told me to clean the bore with whatever method/cleaner I usually use, then run a patch of J-Bs down it. I found out I was leaving a lot of residue, as indicated by the J-Bs patch turning black with lead/power fowling. As for Hoppes #9 smell, I wish they offered a car air freshener soaked in that stuff LOL.