Up date:
Repaired pins, closed cylinder gap, shimmed arbor and adjusted wedge.
The bolt was dropping too early due to short or damaged spring end, fit a new bolt (ain't just a drop in part}.
I ordered 2 bolts one Pietta one Uberti, the Uberti was a 2x better part even though the gun is a Pietta.
I was advised to add a hammer stop a bolt block and lighten the main spring.
Just finished last night, but have been shooting it between project steps.
This thing is "right on", even Wild Bill Hickok would like it!