@flyfisher117 Thanks for your reply. I've got a few .22s that are pretty accurate. I've used a .22 cal. nylon brush and pistol rod to do carbon in the chambers and then a 17cal. Dewey with nylon brush to do the barrels. Sometimes I use a small patch wrapped around the brush and sometimes I use a larger patch on a jag. Solvent is plain old No.9. I'm hoping that the X-Treme will reduce soak time.