Ammunition has to be produced to fit the smaller end of commercial chambers. Chambers have to be cut by commercial manufacturers to accommodate rounds within the range of allowable tolerances. No commercial round will give a reliable gauge of head space. Only depend on quality head space gauges for such decisions. If the bolt will close on the go-gauge ... fine! If the bolt will close on the no-go gauge ... not good at all! Remove the rifle from service until a qualified gun smith can correct the head space. Sincerely. bruce.
" Unlike most conservatives, libs have no problem exploiting dead children and dancing on their graves."