I would say that it would be fine using moon clips. You can shoot 45 acp in a revolver like the S&W Governor with moon clips that is chambered for the 45 COLT cartridge .So shooting a 40 S&W in a 10mm revolver like the S&W model 610 would be the same. There is a big difference between a semi-auto pistol and a revolver. To be on the safe side I would call the manufacturer of the revolver to be sure.

 

I would say that it would be fine using moon clips. You can shoot 45 acp in a revolver like the S&W Governor with moon clips that is chambered for the 45 COLT cartridge .. There is a big difference between a semi-auto pistol and a revolver.

While this is true for S&W, Taurus does not recommend firing 45 ACP in a Judge. Firstly it is not machined to allow moon clips, though I have seen youtube videos. and second, they say the frame is not designed to handle the pressures.
It's like the old guys at the gun show who say, "it's ok to shoot .32ACP out of a break action 32 S&W Long wheelgun.

I'm curious to know how that works.
I don't own a Ruger Blackhawk Buckeye in 38-40 / 10mm, but I'd guess that the 10mm cylinder headspaces on the case mouth inside the cylinder chamber and is reamed at the precise length to allow the base of the round to hang out the end just as any typical rimmed revolver round would.

That being said, I you put a 40S&W inside the cylinder, it would drop in but would hang up where a 10mm round headspaces.
If this is the case, a moon clip could be used to allow 40 S&W to be fired. There is just the slightest amount diameter change in a cylinder chamber. I wonder how dangerous it would be to fire. Would the .40S&W projectile be malleable and squeeze through the narrow change? Will the whole gun go "poof" in your hand? (or exlpode) or would the projectile eventually wear away at the milled headspacing (which brings a series of more questions, for a later time)?

 

I believe the Smith and Wesson 610 allows you to shoot the .40, but good luck finding one. If you do, you will pay

 

This is pure discussion for me, I have no interest in shooting / collecting these calibers.

Some would call it intellectual stimulation, others call it downright confusing All I can say is, thank you spellcheck.

 

If you would seriously like to know how or if this can be done, I would suggest contacting TK Customs. They machine revolvers to accept moon clips. I have an extra .45Colt cylinder for my Vaquero that I sent to them. They machine for clips but leave a rim around the outside edge of the cylinder so the "Long Colt" ammo will still headspace properly on the rim.

If what you're asking can be done they can do it.

C.S.

 

maybe i misinterpreted. I'm not here to piss off people.

 

so, in the S&W 610 do you use moon clips to shoot 10mm? or will the rounds simply fall into place in the cylinder chambers?

 

You can fire a .40S&W in a revolver chambered for 10mm, as the headspace is controlled by the moon clip. It would be no different, really, than shooting .38Spl in a .357 magnum revolver (how redundant). You can also fire .40S&W in a 10mm auto, as the ejector claw will hold the case in place in the chamber. Same goes for a .380 in a 9mm auto, or shooting .380's in a revolver chambered for 9mm, using moon clips.

I don't recommend shooting any cartridge in any gun not specifically chambered for it, though.

 

You can fire a .40S&W in a revolver chambered for 10mm, as the headspace is controlled by the moon clip. It would be no different, really, than shooting .38Spl in a .357 magnum revolver (how redundant). You can also fire .40S&W in a 10mm auto, as the ejector claw will hold the case in place in the chamber..

That makes sense if using moon clips. I never knew how a semi-auto pistol worked (in terms of compatible rounds), although I wonder if it will properly load and eject?

Have you ever seen revolvers that don't use moon clips to fire "traditional semi-auto calibers"; say 9mm, 45ACP, 10mm, and the likes?

 

Have you ever seen revolvers that don't use moon clips to fire "traditional semi-auto calibers"; say 9mm, 45ACP, 10mm, and the likes?

The S&W 547 (9mm) immediately comes to mind. N0 moon clips needed -- and they wouldn't work in that gun. (Had one for a couple of years. I'd like to get another, but they've gotten too pricey.)

 

In that case, you couldnt shoot 380ACP, right? The round would set in but would not be long enough for the hammer to contact the primer?

 

The long and short off it is, If it's a moon clip then yes (ie:610) and no if Rugers as they have independent cylinders that head space on case mouth.

 

Thats been my theory the whole time. Im just a keyboard warrior, sadly.

Still waiting for someone to prove it.

Thanks man

 

You can fire a .40S&W in a revolver chambered for 10mm, as the headspace is controlled by the moon clip. It would be no different, really, than shooting .38Spl in a .357 magnum revolver (how redundant). You can also fire .40S&W in a 10mm auto, as the ejector claw will hold the case in place in the chamber. Same goes for a .380 in a 9mm auto, or shooting .380's in a revolver chambered for 9mm, using moon clips.

I don't recommend shooting any cartridge in any gun not specifically chambered for it, though.

Very interesting. So what kind of 10mm semi-auto did you do this with? And did you just fill the magazine with .40s and rack the slide to chamber one? Would the empty case eject or did you have to go to a lighter recoil spring? thx

 

I own a S&W 610 and all I've ever fired in it is .40 S&W in moon clips, so I can state with extreme confidence that it can be done.

Regarding the more general situation of running semi-auto calibers in revolvers, I'd strongly recommend using moon clips for reliable ignition. I've read a lot of posts on the S&W forum regarding model 625's (.45ACP) that state that folks have had mixed results shooting without moon clips (headspacing on the case rim vs. the moon clip).

Personally I don't understand why anyone would ever want to shoot a revolver chambered for semi-auto rounds without using moon clips. Extraction requires long fingernails or a pencil to clear your empties from the cylinder chambers, since the extractor star does not work on rimless cases, only the moon clips.

Personally I think moon clips are great, it's like having a built-in speedloader for every reload.

Lou

 

I don't understand why anyone would ever want to shoot a revolver chambered for semi-auto rounds without using moon clips. Extraction requires long fingernails or a pencil to clear your empties from the cylinder chambers, since the extractor star does not work on rimless cases, only the moon clips. Lou

Great info!That's a good point. I guess I never thought about double action revolvers and hand ejectors. I've been used to the single action, eject one at a time, mode.