Pro Sport making odd sounds

[Nade]

Hey,
Just been doing some plinking, with my prosport, Its a .177, using jsb exact.
When im shooting, it feels that i can hear the spring making like a 'claang' sound when i shoot. I dont understand why, i havnt shot it in a while. Was perfect before.
anyone know whats up?

[jiggy 666]

broke spring maybe mine sounded funny when broke but still shot

[Nade]

It seemed very weak, at one point i sa the pellet come out.
I should take it to my gun dealer to have a look at?

Or is there anything i could do to get it sorted?

[Lumberjack]

http://www.freewebs.com/stripdowns/prosportstrip.htm

Hi Nade,

I'd chrono it first. If you don't have a chrono it's a five minute job to check the spring.

• Off with the stock
• Out with the 11mm spanner onto the big bolt near the trigger
• Off with the trigger housing
• Out with the spring for a check

Thank you to Mr M.