Mike, I've never seen a 12 ga. l.C. Smith with .717 bores that far back.
What do you mean " .717" that far back?" Does your chart not say they are both .722 @ 25" IN from the breech...therefore .722 BACK from the muzzle???
Like I saidm this gun could have been special ordered with that tapered bore.
You highlighted (red) for both the right and left barrels. I formatted it with a distance between the right and left barrel. So the right column is right barrel, left column is left barrel.
I understood that. And by those numbers, and IMO, the bores are for practical purposes indentical @ .725 5-6" back and .717" at the muzzles. That makes the chokes virtually indistinguishable at 8-9 points. Where am I wrong?
It is very possible that the balls are sticking, and I will send the gage back to them. I had called them not long ago asking if they could make a longer rod to go deeper, 16" would be great but one of the workers said they aren't doing that as of yet.