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Just for kicks I drug out the old 10 and a set of pin gauges. Now I know this wont be 100% accurate but it should be close. Both barrels measure the same. they measure .796 all the way down to about 3" from the muzzle and .730 to the end. So there is .030th constriction in each barrel. I am not positive what that equates to but it sounds like full and full. If that isn't correct some one please say so.
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