Falconflyer
CGN Ultra frequent flyer
The bore diameter stamped on the barrel by the manufacturer is completely irrelevant. Manufacturing tolerances sometimes result in reality being different from specifications.
The only thing that matters is the ACTUAL measurement of the bore.
Exactly, and I'll guarantee that your 12 gauge doesn't measure over 20 mm"s in the bore. Key word here is "the bore", the hole cut for the choke tube is another matter all together but it isn't the bore.


















































