Old Fuff said, "They were the primary sidearm used by Navy's aviators flying off carriers in the Pacific, and remained in service as late as the Viet Nam war."
I was one of them, at least on my first flying cruise to Vietnam. Before each flight, I would fish out a bandolier holster from a jumble of them in a ready room locker. It would contain a Victory Model S&W .38sp which I would load with five of the mouldy tracers in loops along the chest strap. After the flight, I'd put the rounds back into their loops and dump the rig back into that locker. So far as I could tell, no one did anything to them for the entire cruise. Shooting from the flight deck at garbage being dumped from the fantail, I was surprised with that revolver's accuracy single action (I had several years of bullseye shooting behind me). But in combat, I considered the revolver useful for just one thing: firing tracers straight up while swallowing seawater by the gallon. On my next two flying cruises, my personal weapon was a 9mm Browning High Power with two spare magazines. Fortunately, I never had occasion to use it for self defense.
To answer an unasked question, I also carried a packet of tiny flares that screwed into a launcher to handle attracting attention while swallowing seawater by the gallon. Bought the packet at a sporting goods store. I fired off several and was very impressed. I'm sure they are illegal now.
To answer another unasked question, I stored that Browning in my desk safe, right next to a fifth or two of Old Crow. Try doing either in this Navy. They've taken all the fun out it.
Cordially, Jack