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Unread 06-20-2018, 06:36 AM   #22
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edgarspencer
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Quote:
Originally Posted by Mark Ray View Post
I had the seller get a smith close to her get the barrels measured and evaluated. LH .0265" RH .0266., RH modified and LH Full, matching the letter.
I've read this over and over and it's not making sense to me.

What kind of instrument was the 'smith' using that can measure, and differentiate in ten thousands of an inch. Why is the Right barrel, one tenth tighter (.0001") than the left, called Modified, when the Left barrel (I agree that .026" is full), one ten thousands more open is called Full.
I agree that a conventional micrometer can measure in tenths (.0001") but I am not aware of gunsmiths, or anyone outside of laboratory conditions, measuring bores down to a tenth.
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