Smith & Wesson Forum

Go Back   Smith & Wesson Forum > >


Reply
 
Thread Tools Display Modes
  #1  
Old 10-09-2014, 03:21 PM
bigt5150 bigt5150 is offline
Member
617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question.  
Join Date: Nov 2007
Location: South Texas
Posts: 201
Likes: 0
Liked 5 Times in 3 Posts
Default 617 Conversion question.

Greetings to all,
It's been a while. Can anyone tell me if it's possible or even feasible to convert a model 617 in 22 lr. to shoot both 22lr. and 22 magnum. A friend of mine had told me about an article he saw in gun mag that supposedly featured an article about it but I have been unable to confirm or find it. If this is possible, does anyone know of the gunsmith or company that can do this work.
Thanks in advance.
Reply With Quote
  #2  
Old 10-09-2014, 05:09 PM
steelslaver's Avatar
steelslaver steelslaver is offline
US Veteran
617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question.  
Join Date: Oct 2013
Location: Central Montana
Posts: 3,662
Likes: 1,208
Liked 6,182 Times in 2,097 Posts
Default

Shouldn't be that hard if you can find a similar 22 mag cylinder or another 22lr cylinder and ream it to 22 mag. Finding a K frame 22 cylinder might be tough. Some people gasp in horror because the 22 lr is .222 and the mag is .224. No worries the extra .002 disappears when it hits the forcing cone. Common they are hardly high pressure rounds in the first place. Just like guys who shot .454 bullets in model 25s with oversized cylinder throats into a .452 barrel. I read an interesting account of an experiment where a rifle was rechambered so that a considerably larger bullet would chamber and head space correctly although the bore was to small. Some small amount of initially high pressure occurred as the bullet swaged to fit the bore then normal. Failures where wrong cartridge in gun is far more apt to be a result of poor chamber fit and headspace than over sized bullet. I personally am not a 22 mag fan. Not enough of a jump to be worth it IMHO, but people like what they like.

Last edited by steelslaver; 10-10-2014 at 07:03 AM.
Reply With Quote
  #3  
Old 10-09-2014, 06:19 PM
scooter123 scooter123 is online now
Member
 
Join Date: Jan 2009
Location: Metro Detroit, Michigan
Posts: 6,135
Likes: 143
Liked 3,064 Times in 1,589 Posts
Default

You'll need to find a second cylinder that you can have rebored for the 22 Magnum and then have that cylinder fitted to your revolver. My wild guess is that will cost in the range of 250-350 dollars.

For that cost and the approximate cost of 15 dollars a box for 22 Magnum you will gain perhaps 50-100 fps at the muzzle. Because the 22 Magnum is loaded with a powder optimized for a barrel length in the 20-24 inch range. Out of a handgun with a 4 to 6 inch barrel what will be most apparent is the muzzle flash and louder report.
Reply With Quote
  #4  
Old 10-10-2014, 06:53 AM
Yorkie Man Yorkie Man is offline
Member
 
Join Date: Sep 2008
Posts: 517
Likes: 1
Liked 233 Times in 115 Posts
Default

I fitted a new magnum cylinder to my 17-5 that I purchased new from Numerich a few years ago and it works great. As far as the barrel diameters go I have recovered fired magnum bullets and have noticed that other than the rifling marks there are no marks that would indicate that they were too large for the bore. My revolver is more accurate with the magnum rounds than with the long rifle.

I installed a stainless ejector rod to the magnum cylinder so I could differentiate the two at a glance. Both cylinders use the original yoke.
Reply With Quote
The Following 2 Users Like Post:
  #5  
Old 10-10-2014, 09:06 PM
tomcatt51 tomcatt51 is offline
Member
617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question.  
Join Date: Apr 2007
Location: never never land, USA
Posts: 2,920
Likes: 114
Liked 715 Times in 467 Posts
Default

Quote:
Originally Posted by bigt5150 View Post
Greetings to all,
It's been a while. Can anyone tell me if it's possible or even feasible to convert a model 617 in 22 lr. to shoot both 22lr. and 22 magnum.
Simple answer, yes. Just fit a 648 cylinder assy. Yorkie Man has it right.
Reply With Quote
  #6  
Old 10-10-2014, 11:59 PM
Big Cholla Big Cholla is offline
SWCA Member
617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question.  
Join Date: Jul 2008
Location: Las Vegas, NV
Posts: 3,052
Likes: 4,625
Liked 4,023 Times in 1,402 Posts
Default

I have been posting lately about doing exactly that conversion. Be sure to obtain a 22LR cylinder that has a matching extractor star to the one in your M 617. The rechambering of the conversion cylinder is fairly easy to do if your hands are strong, you have a padded vice and a fair amount of mechanical aptitude. PM me if you want a write up on the nuances of doing that rechambering job. I added a 22LR cylinder to my M 48 and was disappointed at the resulting accuracy of the 22LR thru the M48 barrel. The opposite happened with the M 617 and 22 WMR going thru the M 617 barrel. I was actually taken back by the exhibited accuracy. As stated the muzzle flash is extraordinary in low light situations. I just ignore it. I have found the CCI 22 Mag ammo is the most accurate, but not by much. I am looking forward to next summer's prairie dog hunting. I will hunt with the iron sights and not a scope because if I wanted to hunt with 22 Mag and a scope I would just go to a rifle. ............ Big Cholla
Reply With Quote
The Following User Likes This Post:
  #7  
Old 10-11-2014, 09:54 AM
tomcatt51 tomcatt51 is offline
Member
617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question.  
Join Date: Apr 2007
Location: never never land, USA
Posts: 2,920
Likes: 114
Liked 715 Times in 467 Posts
Default

Quote:
Originally Posted by Big Cholla View Post
I added a 22LR cylinder to my M 48 and was disappointed at the resulting accuracy of the 22LR thru the M48 barrel. The opposite happened with the M 617 and 22 WMR going thru the M 617 barrel. I was actually taken back by the exhibited accuracy.
+1 A friend has a 617 and a 648. I set them up so the cylinders would interchange. Best shooting 22 mag combination was (clearly) the 617 with the 648 cylinder. FWIW the 617 cylinder in the 648 shot very poorly as (probably) would be expected with the 648s' "bigger" barrel bore.
Reply With Quote
  #8  
Old 10-11-2014, 10:05 AM
Engine49guy's Avatar
Engine49guy Engine49guy is offline
SWCA Member
617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question.  
Join Date: May 2009
Location: South Florida
Posts: 6,418
Likes: 1,262
Liked 5,760 Times in 1,994 Posts
Default

An alternate take is to pick up a used Ruger Single six , or SS Single 10 two cylinder combo package,
IIRC clean used guns usually sell for around $350 to $450.
Reply With Quote
  #9  
Old 10-11-2014, 01:47 PM
tomcatt51 tomcatt51 is offline
Member
617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question.  
Join Date: Apr 2007
Location: never never land, USA
Posts: 2,920
Likes: 114
Liked 715 Times in 467 Posts
Default

Quote:
Originally Posted by Engine49guy View Post
An alternate take is to pick up a used Ruger Single six , or SS Single 10 two cylinder combo package,
IIRC clean used guns usually sell for around $350 to $450.
Ignoring the fact that this has NOTHING to do with the OPs' question which was about converting a 617, you can get a Ruger Single Six if you want a gun seemingly sized for a typical 5 yr olds' hand size and that (assuming the 22 LR/22 mag convertible) shoots 22 LR poorly.
Reply With Quote
  #10  
Old 10-18-2014, 05:36 AM
drgbike's Avatar
drgbike drgbike is offline
Member
617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question.  
Join Date: Apr 2012
Location: South Western,PA.
Posts: 280
Likes: 221
Liked 221 Times in 89 Posts
Default 22 mag cylinder

have converted several 17s. found cylinders on ebay and gunbroocker. they can run to 150.00for the cylinder. just saw one today. Brownell makes a great set of cutters, and throaters. all most all work can be done at kitchen table. just finished installing a 6 inch barrel on my I frame 32 long. next will install a j frame adjustable sight. instant target model. just picked up m48 barrel. also making a 22k hornet on a k frame 8 3/8 barrel.
Reply With Quote
  #11  
Old 10-18-2014, 01:25 PM
tomcatt51 tomcatt51 is offline
Member
617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question. 617 Conversion question.  
Join Date: Apr 2007
Location: never never land, USA
Posts: 2,920
Likes: 114
Liked 715 Times in 467 Posts
Default

Quote:
Originally Posted by drgbike View Post
have converted several 17s. found cylinders on ebay and gunbroocker. they can run to 150.00for the cylinder.
When they're in stock you can buy a new 648 cyl assy (cylinder and extractor) for ~$128 from Brownells'. Downside to a new assy is it will require ratchet fitting...
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
40 to 9 Conversion question riverfox Smith & Wesson M&P Pistols 5 02-16-2016 07:14 PM
Conversion Question Stoneold Smith & Wesson Semi-Auto Pistols 5 12-28-2014 08:37 PM
question of value on k-38 22 conversion cztrouba S&W Hand Ejectors: 1896 to 1961 5 05-10-2013 10:18 AM
M&P 40C conversion question Dueeast Smith & Wesson M&P Pistols 2 07-06-2012 04:11 PM
i have to ask a conversion question... 681ismyfavorite Smith & Wesson Semi-Auto Pistols 4 03-05-2010 09:04 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 11:57 AM.


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