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Old 11-04-2019, 07:08 AM
ceresco ceresco is offline
Join Date: Oct 2009
Posts: 7,640

The RCBS Precision headspace gauges should be checked against headspace gauges. I have several 30-06 gauges and they do not agree. Quick fix is a piece of tape with an appropriate mark. It may be possible to heat the gauge and adjust.....haven't tried that. Without calibration, the RCBS gauge is still useful for comparison, but will not provide actual HS dimensions. The gauges are useful for a number of purposes. Additional calibration marks on the gauge and it will serve for other cartridges of similar length such as 8mm Mauser, etc. Good Shooting. ...
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