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30-06 headspace gauge help
Can someone help with an ID of these gauges. Are these min (1.940) and max (1.946) gauges military? I own a Forster No-Go (2.0547) and a field (2.0577). what is the difference and is the difference important?
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04-07-2011 09:36 AM
# ADS
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I'm not a machinist or gun smith so I can't say one is better than the other but I do know that different makers use different datum points for their measurements. That's why the numbers differ - they measured to different points.
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Maybe these are measured to the shoulder instead of the datum line?
Would the max one be a No-Go or a field?
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I would only add that there are additional commercial gauges available that are graduated between the go and no-go. These are used to cut the chamber to a more specific size when installing a new barrel. These are what was used installing the new barrel on my match Garand.