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I am so lucky because I reserve the right to disagree and? This stuff does not lock me up. Head space this, head space that and ever tool is a head space gage? All I am interested in is the length of the chamber from the datum/shoulder to the bolt face.
Lucky again? My cases do not have head space, my cases have a case length that is measured from the datum/shoulder to the case head;. The difference between the two lengths is clearance; and there is verifying, I verify the gage so it does not matter what gage I use with the exception of the go-gage unless I have cut a short chamber the go-gage is going to allow the bolt to close; problem, no one knows by 'how much?' With one exception.
Reloaders are infatuated with shoulder set back, they even have a magic number of .002". I can not set the shoulder back and believe reloaders pass up a lot of good numbers when they settle on .002". and I have asked "where did that number come from?" .
F. Guffey
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