The only point confusing to me is the item listed as "Minimum Thickness" under the Left barrel, where it says 0.142" @ End of Forcing Cone". Based on the data points above it, it appears that he measured the thickness at the end of the forcing cone on the Left barrel to be 0.103." It appears that he lists the recommended minimums for each location on the left column, much like your bloodwork report at the physician's office shows the recommended values for different enzymes, etc. in your blood. Your gun's values appear to fall within his recommended limits, except possibly for the Right barrel at the end of the forcing cone, which shows a value of 0.076", which is less than the recommended 0.100." You might give him a call for a better explanation, and his opinion whether the barrels appear safe to shoot with lower pressure loads. Best.
Mike
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