Congrats.

Good advice above.

First thing to do to troubleshoot is remove thumbpiece. Then push the stud all the way forward. Does the bolt now come forward flush with recoil shield? If so, trim front of thumbpiece. Check for easy opening.

Second, check to be sure extractor rod is tight (right hand thread). Then push ctr pin forward and flush to cyl ratchets with a flat object. Does it stick out past the ext rod? It should stick out .002-.003”. If not stone the front of the mushroom knob until it does.

Let us know what you find.

__________________
Jim
S&WCA #819