I recived my headspacing guages and figerd I would press in the arrel this week end and when I tryed to fit in my bolt head in the trunion it would not rotate ??? after putting an eye ball on the problem I would like to know what you all have done to corect the problem( see photo). the 7.62 bolt head on the left has a chamfer cut in to the left lug, the 5.56 bolt head (k-var) does not and the chamfer lets the bolt head move in ferther to the bullet guide (5.56 bullet guide k-var) ramp giving more room for the left lug.
what would be the best fix?