Model 27 no dash quandry

[rogerwnuss]

Any ideas how a no dash 27 could wind up with a short non-recessed cylinder?
Supposedly shipped with a five inch, still has a five inch , could bbl. shoulder have been cut back to make forcing cone protrude adequately to match shorter cylinder?
Were no fivers when non-recessed cylinders were introduced, ya?
Trying to figure why cylinder might have been changed....
rest of the gun supposedly excellent condition.
If the owner wanted to restore it with a recessed cylinder to get it back to original configuration, is it possible for a gunsmith to shave the forcing cone ( barrel extension?)
to fit the longer cylinder? I'm assuming notches on either positioned to work with the action?
Any thoughts appreciated
Thanks, Roger

 

[Engine49guy]

Non recessed cylinders are the same length at the front, they are shorter at the rear to compensate for being non recessed but the bullet case head is in the same exact position.

My guess the cylinder was probably replaced after the supply of recessed cylinders was exhausted,
They still come up for sale, I'd be on the lookout for a recessed cylinder and put it back to original configuration.

 

[rogerwnuss]

Non recessed cylinders are the same length at the front, they are shorter at the rear to compensate for being non recessed but the bullet case head is in the same exact position.

My guess the cylinder was probably replaced after the supply of recessed cylinders was exhausted,
They still come up for sale, I'd be on the lookout for a recessed cylinder and put it back to original configuration.

But overall length of the cylinders supposedly went from I believe 1.62 to 1.57, which would necessitate reducing the length of the " barrel extension" , would it not? Or am I missing something.......or is the difference compensated for by have the star stand out a bit instead of being flush with the back of the cylinder?
And this is a no dash, and the non recessed cylinder came out on the -3, didn't it?

 

[rogerwnuss]

Non recessed cylinders are the same length at the front, they are shorter at the rear to compensate for being non recessed but the bullet case head is in the same exact position.

My guess the cylinder was probably replaced after the supply of recessed cylinders was exhausted,
They still come up for sale, I'd be on the lookout for a recessed cylinder and put it back to original configuration.

Thanks for the info, I get it now. Extractor star is thicker on the non recessed cylinder to keep overall length the same and everything where it should be.
Don't have any idea what could have happened to the original cylinder that necessitated
the change, tho. Weird.....

 

[Engine49guy]

The front of the cylinder ends up in the same place with regards to the forcing cone,
the older recessed cylinders were longer at the "rear" because the cylinder bores were countersunk but the bullets primer and case head is in the exact same position in both versions so they are interchangeable.
Likewise the 38-44 cylinder will swap with a Model 27 or 28 cylinder even though it is also not recessed.

The recessed cylinder was a feature only offered on Magnum cartridge revolvers and 22's .
This feature was deemed unnecessary and dropped to cut expenses in the early 1980's (except on 22's).

 

[Nightowl]

Check the frame lug, it should have been changed with the replaced cylinder. If you replace the non recessed cylinder with a recessed one, the frame lug may need to be adjusted as well.

 

[Hair Trigger]

The only differences between a recessed cylinder and non-recessed cylinder is the extended shoulder that allows the case head to be flush when chambered. The extractor star on recessed cylinders is also recessed in the cutouts, so a non-recessed extractor looks a bit thicker, but only because it doesn't have the recesses. If measured from the front of the cylinder (barrel end), it's the same distance to the rear latch pin tip, and the extractor and rim face, and to the ratchets.
1st is a recessed N frame (M57), 2nd is a non-recessed N frame (M25-5)