I DO own go and no go gauges too. But why not take an extra step like I explain in post #44? I could have been like a couple of you and said, “you guys are lazy for NOT taking the extra step and headspacing that guys 308 for the fed gold medal match he’s going to be using”. I don’t do this for a living BUT that doesn’t mean I don’t know how to make a safe and great shooting rifle. I understand saami and know it gives a MUCH bigger window than go nogo gauges do. I DONT appreciate when I get attacked rather than asked to clarify.