When shooting suspect ammo I normally pull the bullet and re-load into Privi brass. I grew up in Honolulu and a learned the hard way to first clean the bore with soap and water, then clean again with Hoppes No.9. Nice barrels stayed nice with that routine. That was the old Hoppes that would stink up the house like crazy. My parents tolerated me and just open the front door. Honolulu was fun when I was growing up.