Problem with the bolt resetting, causing a leak. I need some professional help here.

[tmnothing]

Alright well I removed 1 LX shim (down to 1 now) and so far it seems like the bolt is resetting properly, BUT now I have a minute leak I can hear that's pretty constant after I air up the gun. It's so very small, it's more like a squeaking than a hissing, it seems very slow. What do I do now?

[muirtach]

I would check and see if it changes tone as you press on the bolt. If it does that would be the carrier. If not get rid of another shim.