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Old November 6, 2018, 02:02 AM   #19
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Join Date: October 22, 2016
Posts: 3,424
Originally Posted by HillBilly Willy View Post
This I can answer, as I bought a caliper set for one of my other projects.

About 13/16th of an inch, or .8125" as measured, inside diameter, with a caliper.

I guess that would make it a 9 gauge?
Sweet, I love the big diameter smoothbore muzzleloaders. I would love to find a 4 bore and load it with shot and take it to the skeet range.
"We always think there's gonna be more time... then it runs out."
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