[kiryandil]

Did the film’s armorer pull the trigger?

[OKSooner]

Plenty of blame to go around.

[Colt1851Navy]

It wasn’t the armorer’s fault she obviously lost the gun around the set there somewhere. If the crew was shooting the pistol around the area there might be ammo tickets for .45 Colt ammunition in some nearby store. That may have been the only functional real weapon in the property room, not a stage prop or dummy.