I have the .5 carrier and 2 shims with gold spring. It fires but i have to tap it to get bolt back set. Boom, hit it, click, and boom. Repeat.
I've tried 3 shims, no shims. Turned up and down velocity.
I tried the next carrier bigger and starts to leak some down barrel.
I've read the level 10 tuning guide and nothing is working.
I have it all on a Phoenix body, teth 9.1 rail, mp90 frame.
Help!