The 1917 and Full Moon Clips / Auto Rim
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 14
Like Tree12Likes

Thread: The 1917 and Full Moon Clips / Auto Rim

  1. #1
    Senior Member
    Member #
    6680
    Join Date
    Feb 2012
    Location
    Seattle Area
    Posts
    223
    Liked
    637 times

    The 1917 and Full Moon Clips / Auto Rim

    Can anyone explain to me why my 1917 will work just fine with Half Moon Clips but bind up when I put Full Moon Clips or .45 Auto Rim in there?

    My .455 Triple lock has the same issue, I thought it was just a half finished conversion job for the longest time. It occurred to me that maybe the problem I was having with my 1917 and Full Moon Clips / .45AR was the same problem I was having with the Triple Lock. Sure enough, when I tossed half moon clips in there it worked just fine.

    I'm just having a hard time understanding why this is. I figure it has to be something about how tight the tolerances are on Smith & Wessons compared to my other .45ACP revolver (a Colt 1917). It still doesn't quite computer with me though.

    Anyway, because I am talking about them, here are the guns in question:


  2. #2
    Supporting Member
    Supporting Member

    Member #
    3849
    Join Date
    Apr 2011
    Location
    East Valley, east of Phoenix, AZ.
    Posts
    12,701
    Liked
    37281 times
    Jeeze SS, I don't rightly know what the problem is..................It doesn't make sense to me and sitting here, I can't figure it.

    My 1917 S&W's both work fine with either half or full moon clips.........and candidly, I've never tried auto rim in either gun.

    It'll be interesting to hear opinions about this.

    Regards,

    Geezer
    Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride! ~ Hunter S. Thompson

  3. #3
    Senior Member
    Member #
    8000
    Join Date
    May 2012
    Location
    North of the ATL
    Posts
    3,700
    Liked
    6086 times
    I run full moon clips in my 1917 (brazilian), and use the same clips (wilson) in my 25 and my 625.. no issues..
    Dont shoot any auto rim..

  4. Remove Advertisements
    SmithAndWessonForums.com
    Advertisements
     

  5. #4
    Senior Member
    Member #
    1419
    Join Date
    Jan 2010
    Posts
    6,238
    Liked
    10239 times
    It makes sense that the half-moon clips have two points of articulation that the full moons do not. Similarly the Auto-Rim is fixed and rigid, and a post war development. One wonders what criteria governed Major Wesson in creating the half-moon clips. Full-moon would not lend it self to web pouches and would be more prone to injury in field conditions. I would be inclined to check the cylinder to shield clearance in all three out of curiousity. You might want to check the cylinder length at each chamber especially on the Triplelock to see if the shave is a bit eccentric.

    As always, "If it ain't broke, don't fix it!"

  6. #5
    Senior Member
    Member #
    8246
    Join Date
    Jun 2012
    Location
    Fostoria Ohio
    Posts
    988
    Liked
    1258 times
    I saw a 1917 army at the Berea Gun show this Saturday at the Buckeye gun table it had a 685 sticker on it but I would give it a 65% in condition..

  7. #6
    Senior Member
    Member #
    6680
    Join Date
    Feb 2012
    Location
    Seattle Area
    Posts
    223
    Liked
    637 times
    Quote Originally Posted by Waidmann View Post
    It makes sense that the half-moon clips have two points of articulation that the full moons do not. Similarly the Auto-Rim is fixed and rigid, and a post war development. One wonder what criteria governed Major Wesson in creating the half-moon clips. Full-moon would not lend it self to web pouches and would be more prone to injury in field conditions. I would be inclined to check the cylinder to shield clearance in all three out of curiousity. You might want to check the cylinder length at each chamber especially on the Triplelock to see if the shave is a bit eccentric.

    As always, "If it ain't broke, don't fix it!"
    Turns out I can't actually get my micrometer in there correctly. Need a different one I expect.

    But, I did discover something interesting. The 1917 certainly does have more clearance, but when I tossed my used brass in half moon clips into the 1917 something interesting happened.


    Here's the Triple Lock:




    Here's the same set of half moons in the Colt:




    Here they are in the S&W 1917 (note the overlap on the right side? Kind of hard to see):




    After a bit of tinkering I realized that the fit on all three sets is really tight, the clips have to be in there just right.

    I'm thinking that my picking up moon clips all willy nilly over the past few years might actually be my problem. I know some are USGI, but others, who knows where they came from?

    I think I am going to need to spend some time figuring out which moon clips I have are made to the correct size and which are not. The colt seems to take whatever I toss into it, but both of the Smiths just seem to need very specific sized half moon clips.
    msharley, Waidmann and twowheeler like this.

  8. #7
    Supporting Member
    Supporting Member

    Member #
    8733
    Join Date
    Jul 2012
    Location
    Ashford, AL
    Posts
    18,196
    Liked
    41172 times
    Check the forcing cone to cylinder and headspace gaps. You may need to change the bushings to restore headspace.
    Guy

    S&WCA #2629 | Ex-Navy Vietnam Vet. / Submariner | NRA Member | S&W Historical Foundation


  9. #8
    Supporting Member
    Supporting Member

    Member #
    3849
    Join Date
    Apr 2011
    Location
    East Valley, east of Phoenix, AZ.
    Posts
    12,701
    Liked
    37281 times
    Quote Originally Posted by Sixgun_Strumpet View Post
    Turns out I can't actually get my micrometer in there correctly. Need a different one I expect.

    But, I did discover something interesting. The 1917 certainly does have more clearance, but when I tossed my used brass in half moon clips into the 1917 something interesting happened.


    Here's the Triple Lock:




    Here's the same set of half moons in the Colt:




    Here they are in the S&W 1917 (note the overlap on the right side? Kind of hard to see):




    After a bit of tinkering I realized that the fit on all three sets is really tight, the clips have to be in there just right.

    I'm thinking that my picking up moon clips all willy nilly over the past few years might actually be my problem. I know some are USGI, but others, who knows where they came from?

    I think I am going to need to spend some time figuring out which moon clips I have are made to the correct size and which are not. The colt seems to take whatever I toss into it, but both of the Smiths just seem to need very specific sized half moon clips.
    I don't know if I'm seeing this correctly because photos can be deceiving.............but in the last photo, it looks like the top half moon clip is sitting flush on the cylinder face and the lower half moon clip ends are over lapping the first ones (subsequently, not sitting flush on the cylinder face). If that's the case, there's at least one of the problems. Also, if that's the case, then me thinks it's the half moon clip that's problematic and not the revolver itself.

    The auto rim is another situation all together.............

    Regards,

    Geezer
    Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride! ~ Hunter S. Thompson

  10. #9
    Senior Member
    Member #
    8000
    Join Date
    May 2012
    Location
    North of the ATL
    Posts
    3,700
    Liked
    6086 times
    I use a couple of sets of blued Wilson moons I bought from midway.. Might try a package to see if they help..

  11. #10
    Senior Member
    Member #
    984
    Join Date
    Sep 2009
    Location
    Southeast Michigan
    Posts
    784
    Liked
    1534 times
    I've had the opposite experience with my Colt New Service Model 1917. It's handles the 1/2 moon clips, but some of the full-moon clips seem to cause some binding on one or two cylinders. I guess this could be attributed to cylinder runout, or thickness variations in the full-moon clips themselves. I just loaded up some half-moon clips and full-moon clips, and tested them out in my just-purchased Model 1917 S&W, and everything works very smoothly.

    I also wonder if the variances could be attributable to rim thickness variations, combined with cylinder/recoil shield variations.
    Best,
    Dennis

    The American Republic will endure until the day Congress discovers that it can bribe the public with the public's money. - Alexis de Tocqueville


 
Page 1 of 2 1 2 LastLast

Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. S&W 627 and moon clips!
    By Redleg in forum S&W Revolvers 1945 to Present
    Replies: 12
    Last Post: 08-27-2012, 10:10 PM
  2. S&W 642 Moon clips?
    By warpaint_88 in forum S&W Revolvers 1945 to Present
    Replies: 13
    Last Post: 08-15-2011, 08:45 AM
  3. Moon Clips
    By everReady Rob in forum Competition Shooting/Matches
    Replies: 19
    Last Post: 04-25-2011, 06:09 PM
  4. WTS mod 57, WTB 9mm moon clips.SPF, found some moon clips.
    By County Mountie in forum WTS, WTB, WTT-FIREARMS ONLY - Please read the rules.
    Replies: 2
    Last Post: 06-09-2009, 01:09 PM
  5. Help re: Moon Clips please!
    By Richard K in forum S&W Revolvers 1945 to Present
    Replies: 8
    Last Post: 02-08-2009, 08:10 AM

Search tags for this page

1917 moon clips

,
full moon clip s&w 45 m1917 model
,
full moon clips
,
full.moon clips in s&w model of 1917
,
half moon clips
,
half moon clips for smith and wesson 1917
,
s&w 1917 half moon clips
,
s&w 1917 moon clips
,
smith and wesson 1917 moon clip
,
smith and wesson model 1917 clips
Click on a term to search for related topics.
Powered by vBulletin® Version 4.2.3
Copyright © 2019 vBulletin Solutions, Inc. All rights reserved.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
SmithandWessonForums.com is not affiliated with Smith & Wesson. We are an enthusiast site and fans of Smith & Wesson Firearms. To visit the official Smith & Wesson site, click here: Smith-Wesson.com.