[MRM]

Silver Snipe is a name Beretta used on a few different guns. Not all of them had trigger selectors. What year or era is yours? The Silver Snipe SST model had a single selective trigger with extractors. I don’t believe any had ejectors. If you look at the safety do you see something extra that might be a trigger selector? It should be in the center of the safety button.

If there isn’t a trigger selector you should be able to reset the other barrel by firing the first barrel (on a snap cap) and then flicking the safety on, then off. Usually, this will reset to the unfired barrel.