11-09-2018, 04:20 PM
Those scratches are not the same as I’ve seen on my 6.5 Grendel barrels. I’ve polished chambers with a barrel mop attached to a hand drill but I used Flitz. I’m not sure Flitz would help on your chamber. I think I’d contact AA and send them a picture of your brass. I’d rather them check the chamber before I tried anything. I’d hate to try something that didn’t work then have them say I caused the damage or whatever.

