Quote Originally Posted by Snooper601 View Post
As promied, the measurements from a recent SFS HW95K
SFS spring HW 95K

30 active coils
3.46mm wire
3.95mm gaps
19.75mm o/d
13mm I/d
223mm free length
16mm preload gave 890fps with 8.4gn .177 JSB

Cheers

John
Thank you for this information. I note, however, that you would be running a tad hot if your figures are correct. Have you recorded the requirements for 'not hot' version?

Cheers, Phil