In your last post in the previous thread you indicated the gun was back together and working. Have you made any other changes since the previous problem with the hammer block was corrected?

You indicated before that the stoppage was in the trigger return phase of the cycle. Are you now saying that the action is locking up when the trigger is being pulled DA?

(I hope those are empty casings in the gun and not live ammunition!)

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Ret. LE, FA Instr, S&W Armorer