03-16-2018, 01:17 AM
Headspace is controlled by the barrel extension to bolt fit. No way that I am aware of to adjust this fit other than try a different bolt or barrel. I do normally use the gages to verify I am good but I have not encountered a build that had a problem. I check with the bare barrel (with extension) and bolt before any assembly and the verify after the build is complete.
I haven't found a set of 6.5G gages yet.
I haven't found a set of 6.5G gages yet.

