Purpose of Unfluted Cylinders?

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What is the real purpose of Unfluted Cylinders? I really like the way they look, but was the purpose to start using them on certain models for cosmetics or do they offer any added strength? Obviously they would have to be stronger than a fluted cylinder but is it enough to make any difference?
 
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Aesthetics . . .

What is the real purpose of Unfluted Cylinders? I really like the way they look, but was the purpose to start using them on certain models for cosmetics or do they offer any added strength? Obviously they would have to be stronger than a fluted cylinder but is it enough to make any difference?
 
I would title this "the purpose of fluted cylinders :)". I have read it was to be able to turn the cylinder by hand with heavy fouling from shooting, as with black powder.

And the only significance of unfluted ones (besides looking cool) is S & W had to modify the lockwork of certain guns due to the increased rotational forces. This is why there are very few model 627s and relatively more 627-0s.
 
I like unfluted cylinders but they're just for looks.

I replaced my 629-6's fluted cylinder with an unfluted cylinder. The gun's weight changed from 44.3oz. to 44.8oz.

The flutes are between the chambers, on the outside of the cylinder, where the metal is already typically the thickest. Unfluted cylinders only make the thickest part thicker.

The thinnest part of a revolver is at the cylinder's stop notch when it's inline with the chamber (unless it's a variation that has them between the chambers). Unfluted cylinders, of the same style, do nothing to change that.

They are just for looks.

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I'm sorry, but I think they make the revolver look unfinished and cheap, like a Ruger.

To me, unfluted cylinders don't look cheap or unfinished, but they sure don't conform to my vision of the classic S&W "look". I used to have a Md 657 Classic Hunter, but I never cared that much for it so I found it a new home. We all have our vision of what is cool or what is not.
 
...added strength...and added weight on heavy recoiling revolvers...

...the five shot ones put the cylinder locking notches between cylinders instead of over them...

NO ADDED strength. The thickness of the outside of the charge holes and the bolt cut depth remains the same. Really equals less machine work for the completed product.
 
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