So as to avoid any confusion, can you confirm that the above spring measurements are for the Tx MK2? I will then add them to the database.
The current database entry reads:
Air Arms TX200 Mk1/2 21 (20.75)od 3.25 wire diam 207 / 220 length 23 active coils Source from Forum so very close to your posting.
Cheers, Phil
PS what is mean diameter? I can see it is id plus wire but I have not seen it quoted before.