Actually that gun is designed to fire all barrels at once,
That's the impression I get. The description says that the gun is double action, so I imagine pulling the trigger ring will automatically rotate the barrels and drop the hammer. Hence, double actionThen why is there a nipple on each barrel?
I believe the barrels are to be rotated after each shot so that the fresh percussion cap is under the hammer.
imagine pulling the trigger ring will automatically rotate the barrels and drop the hammer. Hence, double action
While pressing this trigger, the barrels and come to be placed successively places from there for the shooting.
A "pepperbox" or "cluster" gun fires ALL the shots at once.
If the text describing the gun on the link posted is correct, then what the double action triger does in this case is cock and release the hammer firing all the barrels at the same time.
As for the nipples on the end, the text describes the barrels as "screw" barrels, the nipples are most likely the screws that hold the barrels in place, or are screw off ports for loading the gun