The .45 ACP revolvers are the most moon clip friendly revolvers there are
Thanks Pizza Bob, however, I would add the caveat that the revolver must have a hammer mounted firing pin.
I purchased my first (more about that in a minute) 625 (non) Performance Center revolver in April 2019. It did not function. Many failures to fire - light primer strikes.
I called S&W customer "service" but was not impressed. The 625 was made by the Performance Center and customer service knew nothing about it. The PC does not talk to customers "they do not have a phone" I was told. I considered my options:
1 - Take my plasma cutter to the thing, send the bits to the CEO of S&W and tell him to melt them down and make something which works (would have been the most satisfying as things transpired).
2 - Put it on Gun Broker and let someone else deal with it (in hind sight the best option)
3 - Send it to Clark Custom Guns and have them make a revolver out of it. That is what I did. Sent it end of April 2019. Loooooong story a bit shorter...
Several years ago they built me their "Light Weight Revolver" on a 67, Fantastic. I asked if they could make me a "Medium Weight Revolver" on the 625 - sort of a big brother to the LWR. "No problem!"
It came back this February with the wrong length barrel and BEAD BLASTED. Looked like ****. "We can buff that out." Back again. I saw it again in July. Not what had been specified on the work order. Back again. Lost in their shipping department for 4 weeks until I called and asked for status.
They decided to start over, purchased a new 625 and did the build. Very nice - what I had asked for originally. The only issue I have is an occasional light strike. I found scuffing on the hammer from the key safety "flag" (resolved that for the moment) and on the other side of the hammer from the side plate. I put some DyKem layout fluid on the side plate, reassembled and cycled a couple of times. I found some high spots on the side plate and have stoned them down. I also bumped up the DA pull from 8# to 9#. Seems to be better now but I have not fired it much. Tomorrow perhaps.
After all that blather... My 1917 (from 1918), Webley Mk V (1915) and Webley MkVI (1916) all use any moon clip and any ammo. No problem. The 625 is picky as to moon clips, case manufacturer etc. TK clips are .040" - .041" thick. I have other clips of unknown parentage which are .045" - .046" or .048" - .050". Some work with some brass in the 625 and other combinations bind.
The military revolvers have, I think, a looser tolerance which allows any moon clip/ammo to cycle. The hammer mounted firing pin comes through like a coal miner's pick and will set off the primer regardless of headspace.
The firing pin in the 625 has been replaced with a longer one which helps somewhat. And I guess I will have to stick with TK clips.
Finally, I tried the speed loader with the 1917 and Webley. It will release the rounds but it takes a lot of force to twist the knob. Much more than just to turn it past the detent in free air.
And thanks jimmyj, I did order 2 loaders. I have not unpacked the second one. I will have to give it a try.
Ken