That sounds like a sweet project. I have seen picture of one in an issue of the Double Gun Journal. It was a beautiful gun. Definitly keep us informed with update as the project progress.

If I may make a suggestion. Select a good match grade ammuntion when you start your regulation. Match grade ammuntions is much more consistant than most other 22LR ammo. (sorry if that point was obvious). The hyper velocity stuff although having a nice percentage more energy are real inconsistant in velocity.

Rimfire barrels are also horribly finicky about what ammo they do and do not like. You might want to test a bunch of different ammunition in the barrels and find which brand groups well in both individual barrels well before you start regulating them with a particular ammo.

www.rimfirecentral.com is an excellent web site for information and help with rimfires. I'm sure some of the guys over there would love to here about your project.

You could also make the cape gun version were you have a 22LR barrel and 410 barrel side by side.

Sounds like a fun project and a fun gun to hunt squirrel and bunnies with.

later
mcb