Sovereign barrel threads

[25o1]

The old sterlings don't use Sovereign barrels .They are longer like the old angel barrels

[25o1]

This is the difference between a sovereign & a sterling barrel. They use the same threads but the sterling has a longer neck.
stock ,Smart Parts , & a old 5 hole Dye (was cocker threads)
The barrel measures .868 or 22M.M. diameter with a .070 or 1.75 m.pitch.
I used a 14 threads to inch because that is what my lathe would cut. It is also very similar to 1.75 MM pitch.
Turned ,major diameter of barrel to .870. Things fit well at this time.i