From what I remember, a live round got mixed with the blanks. I don’t think actors are expected to inspect every round let alone know the difference.
As a director on set, maybe Baldwin knew about the live round and even encouraged it, in which case he shares the blame.
But as the person who shot the gun when he was supposed to while filming, I cannot say the same.
And honestly, gun safety isn’t about having the actor, someone who knows nothing about guns, be the last line of defense. If the armorer went through the motions and told him it was safe, how could he spot the difference?
Its a movie, the actor has no gun safety knowledge. Gun safety is paramount but absolutely zero of that responsibility falls on the guy being paid because he looks good and says the lines well.
But tbh I wasn’t there. Maybe he was seriously negligent.