It's definately 22, There is about .0015 difference at the muzzle. It is not a real big deal to upgrade but I wanted to keep the original barrel as is. It is more of a challenge as a machineist friend told me I couldnt do it. Any one that knows me knows that the best way to get me to do something is tell me it cant be done. I've removed the receiver from the Chooey, Cut the turned down chamber off, machined the breach end flat as it is on the crackshot and cut the extractor slot in the bottom of the barrel. I now have to make the extractor and make 1 dovetail in the barrel to accept the attachment nut which I also have to make. Rebore the chamber. Then test fire. If all that goes well I will mnfg front and rear sights to fit the dovetails already in the barrel from Chooey. SHEEEWWW! didn't seem like that much of a project til I typed it.
"War is an ugly thing, but not the ugliest of things. The decayed and degraded state of moral and patriotic feeling, which thinks nothing is worth war, is worse. A man who has nothing which he cares more about than his own personal safety is a miserable creature, and has no chance of being free unless he is made free and kept so by the exertions of better men than himself" John Stuart Mill