Its me (7600 Rem) * I had to change my sn cause of difficultys.... Anyway i use Outers Foaming Boar Cleaner to remove the copper and it works great but i would rather not have to use it at all. It only takes about 5 shots and i can see it starting already...Is this damaging the rifleing in my barrel? Is it bad to leave it in my barrel for a whole season?