I don't have head space gauges. since they are hard to find and would be used only once. (Maybe a field gauge would do it.) But measuring the depth of the bolt face makes complete sense. The Ballistic advantage bolt =.131 and the LaRue = .135. The difference .004 which corresponds to my case head to datum line measurements with a difference of .0035 rounds up to .004. I will call Ballistic Advantage to get their thoughts tomorrow. As I understand the SAAMI specs are 1.1901 Min to 1.2001 Max- case head to datum (.350).
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Charging handle lock up
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Charging handle lock up - by sobiemon - 02-07-2021, 07:05 PM
RE: Charging handle lock up - by Old Bob - 02-07-2021, 11:24 PM
RE: Charging handle lock up - by sobiemon - 02-08-2021, 03:54 AM
RE: Charging handle lock up - by Old Bob - 02-08-2021, 12:38 PM
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