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Old January 11, 2018, 12:49 PM   #7
T. O'Heir
Senior Member
Join Date: February 13, 2002
Location: Canada
Posts: 10,688
Put a solvented jag on your cleaning rod and stick it into the rifling preferably from the chamber end. Put a dot(Sharpie) on the rod at the chamber end and the handle. Push the jag through the barrel for one complete turn of the handle end dot and mark the chamber end again. The distance between the dots is your rifling twist.
Way easier to do than type that. snicker.
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