Muzzle thread - SFS Imp.

[p.j.]

I recently had a look at the threaded muzzle on a SFS Imp. The thread didnt look like that typically cut on a lathe, it had the appearance of being cut with a die. The threads were not very well defined,and the mod was quite tight. Is it possible to die cut, I would imagine it would be difficult to keep it straight.

[Rich]

Needs to be screwcut in a lathe, really. I had a rifle some years ago that a previous owner had tried to thread with a die, and it wasn't central or true. I had the bad thread machined off, a short steel sleeve turned up that was an interference fit to go over the exposed end, and a fresh thread cut in the lathe.

[luap]

I have a die holder that goes in my tail stock I got for
Doing thread on barrels but when I done my 99 it was to
Short to come throw the centre so I had a look on YouTube
And found someone using a kit in America I copied
What they had .with a 1/2unf bolt centre drilled 5.5 then
Glued in the smooth end of a 5.5drill bit then twidel
It through the die put the peg down the bore and it keeps
It true I know it sounds a bit Heath Robinson but it done
The job
https://www.youtube.com/watch?v=1q9vZYl49yw