No. No. A thousand times no.
Measure fired case headspace then bump its shoulder back .002" or so from that number.
All chambers are not what a GO headspace gauge is. Some are a couple to several thousandths longer. Fired cases are typically .001" or so less than chamber headspace.
A headspace gauge is not required to ensure case shoulders are pushed back any amount. Just a comparator. Use a nylon bushing and calipers which is good enough. See post 9 in:
https://www.thehighroad.org/index.php?threads/headspace.815278/#post-10440532
Comparators are exact difference measuring tools.
Measure fired case headspace then bump its shoulder back .002" or so from that number.
All chambers are not what a GO headspace gauge is. Some are a couple to several thousandths longer. Fired cases are typically .001" or so less than chamber headspace.
A headspace gauge is not required to ensure case shoulders are pushed back any amount. Just a comparator. Use a nylon bushing and calipers which is good enough. See post 9 in:
https://www.thehighroad.org/index.php?threads/headspace.815278/#post-10440532
Comparators are exact difference measuring tools.
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