Did you get all of the crud and corruption out of the firing pin passageway in the bolt? Ditto the main spring? Ditto the inside surfaces of the bolt raceway (anyplace that crap can accumulate and soften/prevent the bolt from going into battery)? Ditto the face of the striker? If so, then the length of the pin may be at fault. I don't know what spec may be for it but if you send me the dimensions of yours I'll compare it to mine. Could be a starting point if nothing else.
The clickety-clack is kind of weird but I've gotten use to it.
"You can lead a man to logic, but you cannot make him think." Joe Harz
"Always certain, often right." Keith McCafferty
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