Ok I was just curious because I have never noticed that before on a new saiga and I have seen many, but then again maybe I never payed attention to it. I dont have headspace gauges, what would be a simple way to tell if it is ok to fire, the tape method on the primer end of a live round (ill remove the firing pin). and thank you for your time. And also why would they machine it, I thought headspace was adjusted by moving the barrel? I notice if I take the bolt out of the carrier and insert the bolt into the trunnion/lock-up in barrel, it is a little snug, but feels like it should. Will my bran