20 ga. chokes?

[Autumn Daze]

Bruce, Without knowing the bore dia. we can't tell you much. If we assume(and you know what that means) the bores are nominal at .615 then the chokes would be Right .027 Left .042

[Bruce A Lyons]

Thanks for the help. Im using some Chinese digital calipers. Let me try again and make sure Ive got them centered.

[Bill Murphy]

Judging from dozens of 20 gauge Parkers I have measured, you are not using an accurate tool. No 20 gauge Parker has chokes like your left barrel measurement. You should measure bore and chokes with a proper bore micrometer. That said, I agree with the others who say you have a modified and full gun.