Suppressor thread question

[longshot]

I came across the same problem yesterday.
Rifle is threaded 1/2x20 and the suppressor is also 1/2x20 but after 3 turns it binds. Thread protector goes on fine.
I should have included the suppressor with the barrel when I sent it to the gunsmith and his tolerances must also be out.
I'm packing mine up again and sending it back to him on Monday with the suppressor so he does it right this time....let him sort it out at his cost.
I'm not going to start playing with the suppressor threads...I suggest you do the same.

Your situation reads exactly as mine is, and in hindsight I should have included the suppressor too, it also pains me to admit you are probably right about sending it back, I just had some hope that I might be able to avoid the palaver and cost of doing so. Especially as there may be some possibility that to sort out the rifle thread may involve a new barrel if the current thread can’t be adjusted to fit.