Used it on my Rem 700 Ti in 7-08. This was the 50 bullet, load your own. Had visible chatter marks in the barrel and throat area. After treatment, virtually gone, accuracy seems to have improved, cleaning is much easier and faster now. Load velocity seems to have decreased as others have noted. Shooting 42 gr of IMR 4064, 140 Sierra Pro Hunter, 2660 fps, essentially a one hole group. Will try some other powders just to compare.