I finally got my new 223 ackley put to fire form some brass yesterday. The gun shot absolutely awesome for a gun that was just firing some low velocity fire forming rounds. Upon inspection of my brass though after tumbling overnight I noticed something that is bothering me. On every single piece of brass there is a very very tiny ding, or indention at the exact same spot towards the top about of each piece. It is every so small but still, it has me wondering if there is something wrong with the chamber. I cleaned the barrel out thoroughly and did the whole break in procedure. 1 round swab for 5 rounds then 3 rounds swab for 3 go's and then 1 5 round and then 1 10 round. I know there should be no debris in there as I thoroughly cleaned it several times. Just wondering if this is something I should try and fix myself or is it gun smith time?