I am looking at a new Taurus 692 revolver with the .38/.357 cylinder, and the 9mm cylinder which swaps out easily to shoot either caliber. I am having a very hard time finding anything online where anyone talks about actually trying other 9mm cylinder-compatible cartridges in the 692 9mm cylinder (which uses moon clips), and was trying to come up with all of the potentially compatible cartridges which could be clipped and loaded into a cylinder like that. I don’t actually know if Taurus made the cylinder so tight as to conform to the slight taper of a 9mm case, or if straight-wall .380 will be able to seat in fully or not. On the 9mm cylinder it may also allow cartridges which would otherwise be too long to fit in a dedicated 9mm cylinder, since the 9mm cylinder on this 692 is as long as a .357mag cylinder as it must cover the gap to the barrel. I’m thinking of the 9mm Browning Long, 38 Long Colt, etc… Since the barrel is .357 the diameter should be ok? I’m sure Taurus would scream “NO!” I usually refuse to presume anything with regard to cartridge use safety, but in lieu of any official word from Taurus, and because of the 9mm cylinder being basically the same size (and presumably tolerances) of the .357mag cylinder, I presume it can handle the higher pressures of things like 9x23 Win, or .38 Super. A lot of this depends on whether the 692 9mm cylinder is tightly conformed to a tapered 9x19 case or not. I’m hoping it is not.
Other than the 3 mentioned factory calibers, cartridges on my list to attempt are below. Please let me know of others which might be size-compatible with 9x19 or .357mag in a cylinder. I’m not looking for any official go or no-go here, just a theoretical exercise which I will eventually see about trying some things out. I am not bothering with obviously too-hot things such as 9mm winmag, or absurdly rare things that were experimental only.
In .38/.357 cylinder:
.38spl short (Magtech)
.38 Long Colt
.38 Short Colt
9mm Browning Long (.3578 diameter too big?)
In 9mm cylinder:
9x25 Export Mauser
9mm Japanese revolver (without clips)
9mm Federal rimmed (without clips)