Quote Originally Posted by Waisted View Post
Thanks for that Pete, those dimensions differ to the two sets of dimensions that I have read lately.
Very true, according to the Titan list I've been following, a no12 spring should be 410mm long, ID 15.6, OD 22.8, wire 3.65, coils 41, the gunsmith said it is now closest to a no11 but longer, I think I'm going to have to get a no14 for my project but he said that is massive and defo for a FAC rifle.

Pete