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new here, need help with 1917 Mk iii* questions

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    Posted: June 10 2018 at 1:46pm
The inner band screw should be done up tight. That screw has a shoulder that it tightens onto the band; the the spring is in contact with the wood and the head of the screw. This allows the barrel to move upwards against the spring during firing. It is used to dampen the harmonic's of the barrel.
The front pad and spring in the nose cap is also important on the standard rifle. Worth fitting a new spring if you have one. Good accuracy is a sum of many minor parts and proper fitting. Worth the effort of reading up on proper stocking up etc (proper sources of info not just the Net). When it all comes together properly it's a real joy to shoot!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hangman Quote  Post ReplyReply Direct Link To This Post Posted: June 09 2018 at 6:16am
I was going to ask another question about the spring under the nose cap (nose cap forend spring and stud) How tight is that supposed to be when putting the nose cap back on?

I bought an extra spring for this.   Does this also affect accuracy?   Should I replace it anyway or leave the original one in there?

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Shamu Quote  Post ReplyReply Direct Link To This Post Posted: June 09 2018 at 6:04am
It will depend on individual rifles. Start tight but if accuracy is poor (in excess of 4 MOA) you can back off about 1/8 turn to see if it tightens up. If it does, the leave it there, if not look elsewhere for the problem & re tighten.

The dual spring-loading of the barrel was to retain POI for variable ammunition quality & to stop changes in  POI with the bayonet fitted or removed. It was "Tunable" to get the required performance from many slightly different rifles.

You have to remember these were Victorian designs, from originally, the 1890's, produced with a lot of skilled hand-fitting, rather than modern CNC drop-in parts. Because of that they have far more individual "personality" than a modern rifle.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hangman Quote  Post ReplyReply Direct Link To This Post Posted: June 08 2018 at 5:13pm
Shamu,

Didn’t you say that there is supposed to be a little “spring” left while tightening the inner band screw?

Thanks
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HangmanLI Quote  Post ReplyReply Direct Link To This Post Posted: June 08 2018 at 4:54pm
I remember someone else saying that there was supposed to be some “spring” left when tightening up the inner band screw.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Homer Quote  Post ReplyReply Direct Link To This Post Posted: June 08 2018 at 4:21pm
The inner band screw is supposed to be screwed up tightly.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HangmanLI Quote  Post ReplyReply Direct Link To This Post Posted: June 08 2018 at 3:57pm
I got several spare parts for this rifle. I installed the inner band screw. As I understand it am I supposed to screw I’m all the way in and then back it out a touch until I can feel some spring with the screwdriver?

Have I got that right?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Shamu Quote  Post ReplyReply Direct Link To This Post Posted: June 02 2018 at 2:26pm
It should be a flat "spacer" if needed. (#5 in your drawing) Sometimes it is sometimes not. Its job is to space the spring tension so that it has a little "spring" left. This give is what reacts with the barrel via the inner band to dampen barrel harmonics without actually clamping down firmly.
You can check if you need one with a simple test with a screwdriver. There should be a slight spring tension  felt as you press the screwdriver into the slotted head. if it doesn't move its too tight back off about 1/8th of a turn & try again.
This exploded drawing shows what happens on a rifle where you don't need the extra spacer. #37, 38 & 39.
FOR A BIGGER IMAGE RIGHT CLICK, SELECT "VIEW IMAGE" THEN HIT THE "+" SIGN.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Shamu Quote  Post ReplyReply Direct Link To This Post Posted: June 02 2018 at 2:10pm
Done. Sorry for the inconvenience its an anti-spam thing & will soon go away.
I'm on here 2~3 times daily so I don't know how the long delays you're experiencing are happening. I remember approving most of these posts within a day, or at worst overnight.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hangman Quote  Post ReplyReply Direct Link To This Post Posted: June 01 2018 at 3:49pm
Would the moderator please send me a private message and let me know why things are taking this long to post?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hangman Quote  Post ReplyReply Direct Link To This Post Posted: May 31 2018 at 8:07pm
thanks for the information.  I've been looking online.  I've found the inner band screw, the spring and I've seen two different type of washers.  One shows a flat washer.  The other photo shows a split washer.


Which type of washer was used with the inner band assembly?

I have the spring in my rifle.  Should I replace it anyway or just get the screw and washer?

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Shamu Quote  Post ReplyReply Direct Link To This Post Posted: May 31 2018 at 6:00am
Yes its a collar, washer/spacer, coil spring & bolt.

I found my swivel on a gun site, online & had to ship it from NZ.
Your rifle is actually complete without one as they were ONLY fitted to target or sniper rifles.
The mount had originally been for a regular sling swivel, identical to the other ones for cavalry (horse mounted) sling use & then removed.
Try e-bay they pop up occasionally, look for "SMLE target swivel" there are several types so be careful. (you can not use a No4 one its a different thread.)
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hangman Quote  Post ReplyReply Direct Link To This Post Posted: May 30 2018 at 7:02pm
Originally posted by A square 10 A square 10 wrote:

be aware some of the mkIII* front vtrigger guard swivel mounts were not D&Td for the screw , its just a hole - i cannot say for certain from your photos , but may not take the scgew - should be same as for the front swivel band i think tho , 


Long day today and just got home.   I took one of the sling swivel screws out of the rifle and was able to thread it into the hole at the front of the trigger guard.    So it is obviously drilled and tapped.

Is there any link or resource that I can get this original part? The screw and swivel?

also I found a diagram of the breakdown of the rifle.  It shows the "inner band assembly".  It looks like there is some sort of bushing or washer  that sits below the inner band and on top of the forend.  Then the spring and screw below that.  It is listed as part #5.

Am I wrong here?  
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Post Options Post Options   Thanks (0) Thanks(0)   Quote A square 10 Quote  Post ReplyReply Direct Link To This Post Posted: May 30 2018 at 3:34pm
be aware some of the mkIII* front vtrigger guard swivel mounts were not D&Td for the screw , its just a hole - i cannot say for certain from your photos , but may not take the scgew - should be same as for the front swivel band i think tho , 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hangman Quote  Post ReplyReply Direct Link To This Post Posted: May 30 2018 at 7:08am
Is there a source where I can buy this swivel and screw?

I would like the rifle to be complete
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Shamu Quote  Post ReplyReply Direct Link To This Post Posted: May 30 2018 at 6:39am
Yes the Inner band screw is correct.
The other one in front of the magazine well is just a sling swivel, unused.
It can be used for a sniper-type sling mount if you feel the urge but in service it was just used to tie the canvas breech cover in place & was replaced in the later models with a simple wire loop.

Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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