After shooting close to 300 rounds of Thors through my Accura, i picked up a bottle of Pro shot Copper solvent IV. I ran a wet patch down the bore, gave it a few minutes to work then used a brush and repeated with another wet patch and gave it 10 minutes. I came back, looked down the barrel and all kinds of Copper came out! Its some awesome working stuff thats for sure. Im getting itchy, may just have to take the ol accura out to 100 and take a few shots for fun.

Cool! I just started using Hoppes Bench Rest Copper Cleaner and it seems to work pretty good. Got some copper out of my Rem 700 barrel.