First pic is just a mockup of artillery sight on blank; next is trimming back the excess metal where the sight mounts; third is cutting the barrel taper, a long tedious manual task, fourth is the tapered barrel, lightly polished, with sight mounted to see how it looks...
I am not a metal finisher, so there will be rough machined surfaces. These should blend in well with the rough Japanese machining...
Other pic is the polished taper...Compare with pic in previous post...
It's getting there...