Just finished my first build. 110 action, Shilen select match in 260 remington. Headspaced with Forster gauges. Bolt hangs about a third of the way through its arc on the no go gauge. My first five shots show concentric marks on the shoulder as shown below. It almost looks like there was a burr or nick on the reamer when it was made. The shoulder looks kind of funny too, almost distorted. Is this anything to be worried over?


2012-10-25_21-26-21_734 by bsshep1, on Flickr