ugh, frustrated

[athomas]

I think i have got it worked out. The ULT seems good to me but it is the only one I have any experience with, it only has 2 shims in it. I went back to the carrier that was causing bolt stick but with a different carrier o-ring. It seems to be fine now although hitting harder than my other level 10 mag but I am also running the gold spring on this one and a longer spring on the other.

Two shims in the ULT shouldn't cause any issues.

You probably had a bad level 10 oring that required a carrier that was too tight in order to keep it from leaking.

The mag with the shorter gold spring will cause the bolt to hit harder than the one with the longer spring.