9mm Luger, 9mm Largo, 9x21mm, .380ACP, .38Spl, .38S&W, .38ACP, .38 Super, .357Mag, 9x18 Ultra, 9mm Glisenti, .38Short Colt, .38 Long Colt, 9mm Federal (rimmed), 9mm Browning Long (9x20), .356TSW, 9x23
Dunno if the .357Max will work or not.
The list does not, of course, include the .357SIG, 9mm Mak & 9x25 Dillon and other 9mm rounds which will not work in the revolver.
It also doesn't list rounds that WILL chamber and fire safely but have different bore diameters such as 7.62x25 & 30 Luger.
I'm probably missing a few and I'm not entirely sure the 9x23 will work, but that's pretty close--I think they inflate the list a bit by listing .38 spl, .38spl +P, .38spl +P+ as different cartridges, and also listing some calibers multiple times under different names such as .380ACP, 9mm Browning, 9mm Kurz (all different names for the .380)
So I get a list with 17 rounds on it. Of those rounds, something like 10-12 of them are obsolete, reloading only propositions, or not easily found in the U.S. So realistically we're talking about a revolver that can chamber and fire (with reasonable accuracy) around 5 different calibers that are reasonably common.
Kinda neat, I guess...