Smith & Wesson Forum

Go Back   Smith & Wesson Forum > >


Reply
 
Thread Tools Display Modes
  #1  
Old 08-11-2017, 10:57 AM
GTBL's Avatar
GTBL GTBL is offline
Member
Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686  
Join Date: May 2015
Location: Georgia
Posts: 94
Likes: 143
Liked 134 Times in 55 Posts
Default Swapping Cylinders on a 686

I have three 686-8's, all three are the 7-shot. Since they are all the same, can I swap the cylinders? Does it matter?

Reason, one of them is a TALO 5" with the smooth cylinder. Thinking of putting that cylinder on my 3".
Reply With Quote
  #2  
Old 08-11-2017, 11:35 AM
k22fan k22fan is offline
Member
Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686  
Join Date: Feb 2010
Posts: 4,044
Likes: 2,801
Liked 2,730 Times in 1,359 Posts
Default

Even between revolvers with consecutive serial numbers cylinders are not intended to be interchangeable. During assembly the yoke length is adjusted to hold the cylinder very close to the recoil shield. The back of the barrel and its shoulder are shortened so that it turns in straight up with the correct torque and flash gap. Also the ratchet teeth are filed to create correct carry up. You can get lucky but at best you'll likely make close tolerances worse. Often a random cylinder will not work without a trip to the gunsmith.

Last edited by k22fan; 08-11-2017 at 11:37 AM.
Reply With Quote
The Following 5 Users Like Post:
  #3  
Old 08-11-2017, 01:25 PM
OldChief OldChief is offline
Member
Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686  
Join Date: Apr 2016
Location: Northern California
Posts: 371
Likes: 146
Liked 244 Times in 149 Posts
Default

k22fan is correct, you can't just swap out parts on S&W revolvers. Most parts have to be fit to that particular firearm. In the case of the cylinder there are tolerances that must be maintained between the front of the cylinder and the forcing cone of the barrel as well as the back of the cylinder and the frame (headspace). The ratchets and the hand must be fit. Also, the cylinder stop must be fit to the individual cylinder. I don't want to be redundant to what k22fan said but, it's so important that people understand what a precision piece of equipment the revolver is.
Reply With Quote
The Following 2 Users Like Post:
  #4  
Old 08-11-2017, 01:56 PM
GTBL's Avatar
GTBL GTBL is offline
Member
Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686  
Join Date: May 2015
Location: Georgia
Posts: 94
Likes: 143
Liked 134 Times in 55 Posts
Default

Thank you for the comments! I will not mess with it then.
Reply With Quote
The Following User Likes This Post:
  #5  
Old 08-11-2017, 04:46 PM
S&WIowegan S&WIowegan is online now
US Veteran
Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686  
Join Date: May 2004
Location: Iowa
Posts: 2,848
Likes: 6,560
Liked 1,863 Times in 973 Posts
Wink

Everything k22fan and Old Chief said is correct.

In spite of that, you won't do any harm if you sit down and swap them out. First, compare the stop notches on the cylinders. If they are not the same, the swap won't work. Measure the cylinder gap of the revolvers before the swap and after(use classic feeler gauges). Cycle the actions and see if they function as they did before the swap. If you're really brave, fire some mild rounds and see what happens. You will NOT blow the guns up, but they may not function as well as they previously did.

I have made successful swaps myself. I checked with my revolversmith first and he gave the green light.

Your decision.
__________________
Bob.
SWCA 1821
Reply With Quote
The Following 2 Users Like Post:
  #6  
Old 08-11-2017, 07:07 PM
OldChief OldChief is offline
Member
Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686  
Join Date: Apr 2016
Location: Northern California
Posts: 371
Likes: 146
Liked 244 Times in 149 Posts
Default

What I like about the previous post is the statement, "I checked with my revolversmith first and he gave the green light."
Reply With Quote
The Following 4 Users Like Post:
  #7  
Old 08-12-2017, 03:37 AM
BLUEDOT37's Avatar
BLUEDOT37 BLUEDOT37 is offline
Member
Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686  
Join Date: Dec 2012
Location: N.E. OKLA.
Posts: 3,389
Likes: 2,662
Liked 2,917 Times in 1,338 Posts
Default 629 Unfluted cylinder swap

Quote:
Originally Posted by GTBL View Post
... can I swap the cylinders?
...one of them is a TALO 5" with the smooth cylinder. Thinking of putting that cylinder on my 3".
I have a 5" 629-6 Classic with a fluted cylinder & wanted it to look like my 686 TALO 5" with unfluted cylinder

I ordered an unfluted cylinder for the 629 from Midway along with all the related parts to be able to swap between cylinders at will.

The short story, I decided it was easiest (read less hassle/work for me) to just use the new unfluted cylinder with all it's other related original 629 hardware (extractor, extractor rod, extractor rod collar, center pin, center pin spring, & yoke), as one unit, and save the new parts for spares.

Reusing the original extractor/ratchet & center pin saved fitting. Everything worked fine. The only problem that needed correcting was that the new combo had more endshake than the original combo so I installed some bearing/shims, which I had on-hand, to correct it.

It shoots fine & now they have the similar look I wanted.

I say go ahead & make the corresponding parts swap & see how they work together. If you're unsure about the final results have it checked by a gunsmith. Or just have him do the whole parts swap & tweek anything that needs it.

.

629-6 Classic 5", with unfluted cylinder installed

(-01b)

.

686-6+ TALO, 5"

(-01)

.
__________________
To a hammer everythings a nail

Last edited by BLUEDOT37; 08-14-2017 at 01:41 AM. Reason: .
Reply With Quote
The Following 3 Users Like Post:
  #8  
Old 08-12-2017, 11:34 AM
H Richard's Avatar
H Richard H Richard is offline
US Veteran
Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686  
Join Date: Aug 2006
Location: West Central IL
Posts: 16,173
Likes: 6,895
Liked 8,754 Times in 3,984 Posts
Default

I had previously had a Pre-Victory model in 38 S&W, and successfully fit a 38 special cylinder to it (using the original ejector, ejector rod, and yoke, center pin, etc.). This worked just fine, I could swap back & forth.
__________________
H Richard
SWCA1967 SWHF244
Reply With Quote
The Following 2 Users Like Post:
  #9  
Old 08-12-2017, 12:07 PM
TAROMAN's Avatar
TAROMAN TAROMAN is online now
US Veteran
Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686 Swapping Cylinders on a 686  
Join Date: Jan 2010
Location: The wet side of Oregon
Posts: 5,436
Likes: 5,893
Liked 5,370 Times in 1,790 Posts
Default

Tried it once on my 681. Extra cylinder from eBay I wanted for moon clip cutting.
Dropped in, fit and timed perfectly B/C gap .005".
Must have been pure luck.
__________________
-jwk-
US Army '72-'95
Reply With Quote
The Following 3 Users Like Post:
Reply

Thread Tools
Display Modes

Posting Rules
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Swapping cylinders? pinoakflats S&W-Smithing 4 01-24-2015 03:10 PM
Swapping cylinders from a 386 and 686 ahpd1992 S&W Revolvers: 1980 to the Present 3 12-07-2014 01:18 PM
Swapping Cylinders Mike-4 S&W-Smithing 16 01-26-2014 07:57 AM
Swapping Cylinders AKMac S&W-Smithing 2 04-04-2011 06:59 PM
Swapping out cylinders 66TXguy S&W-Smithing 4 07-31-2010 12:50 PM

Powered by vBadvanced CMPS v3.2.3
smith-wessonforum.com tested by Norton Internet Security smith-wessonforum.com tested by McAfee Internet Security

All times are GMT -4. The time now is 11:43 PM.


S-W Forum, LLC 2000-2015
Smith-WessonForum.com is not affiliated with Smith & Wesson Holding Corporation (NASDAQ Global Select: SWHC)