there's no requirement for proofing a threaded barrel for moderator at all, fact. For some peculiar reason some shops insist on it, but, the proofhouse does not.
I have four rifles, all screw cut, two by the manufacturer and two by my friend.
None have proof marks anywhere near the threading and nothing identifies which threading is done by whom.
Work that one out
Hi all some time ago I had my .222 screw cut privately by a local guy I never worried about getting it reproofed, I am now thinking of selling it but wondering if I can as it was not reproofed.
Been argued on here before....
if I remember right the conclusion was that it is not necessary to get a rifle re-proofed after a threading job....
interestig link below
Reflex Suppressors UK Proof info
When they first allowed moderators for centerfire rifles under Gwent Police, the local gun shop gave me a notice from the proof house and told me that the rifle would have to go off for proofing after being screw cut and the cost was just as much as the moderator. I contacted the proof house in London and they informed me that they had just been to court with someone for the same reason but the case was thrown out as the cut did not weaken the barrel in any way requiring a new proof.
Upshot was they would not be chasing anyone else having been beaten already.
Its always worth checking and don't accept what you are told is gospel.
So if this is correct (And I have no reason to desbelieve it even though I've not seen anything "in black and white" about it) then "being led to believe" that you must get your gun re-proffed if you get the barrel screw cut and then want to resell it is just another "money making exercise" to help someone to line their pockets!
Proofing of guns is just a money making exercise anyway, there is no reason for it.
what are you selling, or contemplating on ?