February 11, 2007, 09:59 AM
A question please.
Are cylinders on S&W revolvers interchangeable? (same model/calibre of course). That is not requiring any gunsmithing to tune/time/whatever. Specificly a S&W 940.
I have a chance to fix a safe queen if they are.
Thanks in advance
February 11, 2007, 10:27 AM
I don't think that I have ever had one that worked right. Only way to tell would be to try. I would only try to use the "new" cylinder and then use the ejector from the old cylinder, better chance of things turning properly. I'm guessing that it will still take some tuning to get it right though. THe bbl cylinder gap may well be out of spec also.
Good luck to ya.
February 11, 2007, 05:50 PM
IMHO, if you choose to swap cylinders, swap the extractor and all. The extractor is closely fitted to the cylinder and should go with the cylinder.
February 11, 2007, 06:45 PM
It can go either way. I had a pair of Smith Model 13s once. I could slip the blued cylinder...extractor, crane/yoke and all...into the nickeled one, and it'd hand up and time just fine...but I couldn't swap'em the other way around, even if I swapped yokes.
February 11, 2007, 07:16 PM
"Are cylinders on S&W revolvers interchangeable? "
Cylinder assemblies, (the cylinder and ejector) are hand fitted at the factory.
This is an extensive process, and the fitter is a true expert that really knows what he's about.
While you'll hear from people who'll tell you that they "dropped-in" a cylinder and it "worked fine", upon examination by an expert, he'll tell you just how and why it really isn't right and does NOT fit properly.
There's a whopping difference between going into the gun, and fitting and working RIGHT.
The difference is in safety, accuracy, and spitting bullet metal.
Once a cylinder assembly is fitted to a frame, it's not likely to properly fit another frame.
Of all the guns I've seen in which a non-EXPERT pistolsmith installed a cylinder, I've NEVER seen one that really fit and worked properly.
Because of the safety aspects of installing a cylinder assembly, most gun companies will not sell a cylinder or ejector to anyone but a factory qualified pro.
Used cylinders and ejectors have already been fitted, and usually can't be re-fitted. Once you remove metal to fit a cylinder assembly, there's no practical way to put metal back.
My advise. Cut to the chase and send it in to S&W and have them install a new assembly the RIGHT way.
February 11, 2007, 07:35 PM
I'll hafta add a +1 to that. On my swap, I was just curious to see what the result would be...if they would interchange. Never fired it. Goes back to somethin' I've said a lot: "Just because it runs, ain't a guarantee that it's runnin' right."