I just did it on a brand new 6.8 barrel, i'm not impressed so far. Every 6.8 I have shoots around .5 MOA, it shot my two favorite handloads with 95gr TTSX and 110gr PH's, and am only getting 1.5 MOA. Now granted, it could just be the barrel. I didn't notice that it was that much easier to clean along the process. This is one of those processes that some believe in and that others say will damage the barrel. I'm open on opinion so far. It could be my loads aren't go for this barrel, so will work on other loads, see how it does, see how easy it cleans, etc.