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Old August 10, 2010, 10:16 AM   #1
Rifleman1776
Senior Member
 
Join Date: April 25, 2010
Location: Arkansas
Posts: 3,309
what is air gauging?

Over the years I have seen frequent mentions of air gauging barrels. But, I have never known what it means or how it is done.
Could someone please explain the 'how' and 'what' for me? Thanks.
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