This question comes up so often, and this thread will again if someone uses the 'Search' function, so thought I'd post this template I use when measuring barrels. The format changed a little from the Word doc but it might help those with gauges
Date_____________________________________
Maker___________________________________
SN______________________________________
...................................LEFT...........................RIGHT
Chamber_______________________________ ____________________________________
Bore __________________________________ ____________________________________
Choke _________________________________ ____________________________________
_________________________________ ____________________________________
Choke Length___________________________ ____________________________________
WALL THICKNESS
End of chamber ___________________________ ____________________________________
(.105”)
Forcing cone ___________________________ ____________________________________
(.100”)
9” from breech____________________________ ____________________________________
(.040”)
9” from muzzle____________________________ ____________________________________
(.025”)
MWT_________________@_________________ _____________________@_____________
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