Barrel interchangability

[Bobby Cash]

I'm kind of keen on finding a 16 gauge "0" frame Parker. Somewhat slim pickings. I've got an "0" frame 20 gauge Extractor gun and am wondering if 16 gauge barrels from an early Trojan could be fitted to my gun (I've got the forend).
What are the considerations regarding this type of endeavor?

Thank you,
As always, :bowdown:

Bobby

[Bruce Day]

Bobby, if you just have to have a 16ga O frame, how about buying 16ga barrels (28" and 0 frame only) from Galazan for $2000 and having them fit to your 20 ga?

I wouldn't think that would add $2000 of value to the 20ga upon sale, but maybe that is not a concern.

If from a Trojan with straight rib extension, what are you going to do about the frame dolls head recess ? And Trojan 16s were 1 frame, and they will stick out from the sides of an 0 frame. What are you going to do about that?

[Bill Murphy]

The firing pin spacing is not the same on a 16 gauge Trojan and a 0 frame 20. The 16 is on a #1 frame. Trojan barrels of the same frame size can be fitted to a graded Parker of the same frame size with extractors. Either an extension rib barrel or one without extension will work.

[Bruce Day]

The hammer nose spacing on an 0 frame should still hit the primers of shells in a 1 frame barrel, although further to the side. Still, trying to fit larger frame size barrels on a smaller action is a bad idea, in my opinion.

Bruce Day, Parker non expert apprentice third class

[Linn Matthews]

See my response to your earlier post