OK I checked something out, my rifle does not have a magazine, it is only 6 months old and has only had about 200 rds through it. It holds 5+1 and when I load it that way or with just 5 rounds what happens is the tip of the fifth bullet scrapes as I chamber the round. As I cycle through the fourth round through the last round do not scrape. if I load 3-4 rounds this does not happen. As I mentioned earlier I dont recall this happening when I used federal ammo I dont think this will effect anything as I have yet to find any of these flakes in the barrel but I am just a novice so any suggestion or comments are welcome. I figure my options are: live with it, dont load five rounds, change ammo and see if it continues (hate to do that since I really like how well corelokt shoots in my rifle; dead center of bullseye on first shot at 100yds every time.), take it to a weartherby gunsmith (covered by warranty?) and let him repair it with the closest one being in Hunstvile.