If I was gonna build one, I'd start with what you used. Those old ones with 2 3/4 ONLY chambers have a much shorter stroke than the later ones.
A man NEEDING to use one is gonna be pretty excited and it's easy to short stroke the newer ones.
It's one thing to hear the "click" as the firing pin strikes air and you watch a cock pheasant fly on off.
Damn sight worse when you REALLY need it to shoot a second time.
Gene, I must be old-school because that's exactly what I've got sitting behind me in its soft case right now. Nice blue and walnut with the old checkering. I think the barrel is 28" modified. What used to be thought of as a do it all gun. I intend to get a 20 just like it when one shows up on a gunshow table.
