Coosa;
I will have to say it is not the most Aesthetically pleasing gun I have ever looked at, but if it works & you like it that matters not.
Not sure though just what you are referring to when you say it had to have a double taper. Are you referring to the fact it had to taper both horizontally & vertically. This would seem to me to be a simple taper in each direction which should not present a problem to a reliable maker.
A double taper would to me indicate that the taper changed in the same plane, but I see nothing that would indicate this to be case here. I don't recall the length of the barrels from your previous post but if they are 30" then to taper from .410" down to .250" would give a taper of .005333" per inch. If this is constant for the length of the rib then this would be a single taper.
Just Clarifying, but I "Think" what you are referring to is Two Tapers (IE one in each plane) rather than a Double Taper.
