Quote Originally Posted by gtfreight View Post
I have had to cut and compress the spring on my 35 so that the preload doesn't start until the trigger block meets the thread and it's resonating when shot. The guides are fitted snugly and it didn't do it before I shortened the spring so I'm thinking that it's bouncing back and forth through the shot cycle.
Is there a softer spring that will cure this or is there another option?
Thanks,
Gary.
Maccaris spring softened my .177 HW35:
https://www.airrifleheadquarters.com...88/9689749.htm

This spring has a smaller diameter, which keeps the piston away from the piston ID.
The spring it is longer than the original, and has more preload, so it requires a well fit tight guide to remove all vibration.
( I dont like large amounts of grease for vibration dampening )