Quote Originally Posted by George in NH View Post
Or you can obtain a "field" gauge and check the chamber again. If the bolt does not close on the "field" gauge you can safely fire the rifle.
George is correct. GO and NOGO gauges are only appropriate for use when installing a new barrel. For checking headspace on an existing rifle, the only gauge you should be using is a FIELD gauge. If the stipped bolt doesn't close completely on a field gauge with very light finger pressure, then the headspace is acceptable. HTH