The potential build is the "Coaching carbine" (no. 3).
The barrel is of brass, 24" long, with a 17 bore (.650) that is .672 (internal dimension)at the muzzle.
The barrel appears to be completely cylindrical without octagonal flats, at the breech location. There does appear to be a decorative ring turned at the muzzzle.
There appears to be no forend cap (this example is damaged), and the ramrod has a pretty radical flare.
I previously noted that the triggerguard bow seemed quite small, but this conclusion only stems from the observation of the other arms.
I do not detect a front sight, but subsequent research has noted that this would be A-ok.
I can easily figure out the graceful "swamp" differential from the image, after the breech dimension (ballpark) is determined.
The lock is a "doglock" in the image, but this is also optional. The TRS doglocks are flat faced, but I prefer the stereotypical "round face".
Anyway, I have 30 feet or so of 1.5" Alloy 464 (certified) that needs to be used. I am not really a "Blunderbuss" fan (yet, but my mind will change)but this coaching carbine lets me use my brass and not look blunderbussy (?).
I am pretty sure this is the next build after the Trans rifle.
Any input on dimensions or nuances of this arm would be appreciated.
:thumbsup: