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Problem with sp101

This is a discussion on Problem with sp101 within the Ruger Double Action forums, part of the Pistol & Revolver Forum category; Hi, I am having a problem with my sp101 3 inch . When dry firing , if I pull the trigger a little bit and ...


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Old April 13th, 2017, 08:15 AM   #1
 
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Problem with sp101

Hi, I am having a problem with my sp101 3 inch . When dry firing , if I pull the trigger a little bit and the hammer will start to move back, if I stop and release the trigger allowing the hammer to go back to its original position, then if I try to pull the trigger the hammer will only go back a little and will not cock. If I then rotate the cylinder by hand it will work fine. What is the problem. Thanks in advance.



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Old April 13th, 2017, 09:31 AM   #2
 
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I'm, admittedly, not an expert, but it sounds like the hand is worn.
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Old April 13th, 2017, 09:43 AM   #3
 
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This revolver has been fired less than a hundred rounds
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Old April 13th, 2017, 09:45 AM   #4
 
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No idea, then. I'll wait to hear what everyone else suggests. I'm curious to know.
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Old April 13th, 2017, 10:05 AM   #5
 
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Ok you have a new Ruger SP101 under or about 100 rounds and having problems..........Call Ruger Customer Service they will take care of you!!! Now if you have done spring kits etc they will install the stock springs again just to let you know!!! From what I am hearing just let Ruger repair your SP101 for you!!! I have had a few SP101's never had a problem with one yet. But doesn't mean there will not be problems. Give Ruger a call they will take care of you!!!
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Old April 13th, 2017, 10:05 AM   #6
 
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Quote:
Originally Posted by Doeysdad View Post
Hi, I am having a problem with my sp101 3 inch . When dry firing , if I pull the trigger a little bit and the hammer will start to move back, if I stop and release the trigger allowing the hammer to go back to its original position, then if I try to pull the trigger the hammer will only go back a little and will not cock. If I then rotate the cylinder by hand it will work fine. What is the problem. Thanks in advance.
From what you're describing..when you pull the trigger a little bit the cylinder latch raises out of its slot to allow cylinder rotation...when you release the trigger the latch is riding on the outer surface of the cylinder...the trigger has reset and will not cock until the latch has returned to the next slot. It has to do with the timing of the cylinder. It's by design.
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Old April 13th, 2017, 10:35 AM   #7
 
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What I think may be happening: (my terms may may not be correct)
Initially, the trigger lever pushes the hammer backward. As it moves backward, the hammer compresses a metal spring in the gun stock (the handle). At the same time, the trigger rotates the cylinder so the next breech chamber is positioned in front of the gun barrel.

The trigger mechanism includes a part, the Hand that extends out of the recoil plate and as it protrudes engages the ratchet on the cylinder face, rotating the cylinder to position a bullet in a cylinder in front of the barrel. If the trigger isn't pulled completely, the cylinder chamber.w/bullet doesn't completely position in front of the barrel. If this happens, the trigger mechanism is designed to prevent the hammer from completely cocking and falling, discharging a round that isn't in front of the barrel. That wouldn't be a good thing.

Essentially, to put a revolver cylinder in position to begin a new, complete trigger pull, the cylinder would need to be rotated until safely locked into a new position.
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Old April 13th, 2017, 10:54 AM   #8
 
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I can't get my GP 100 to do this. Either going to gunsmith or back to Ruger
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Old April 13th, 2017, 02:11 PM   #9
 
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Quote:
Originally Posted by Argee1950 View Post
From what you're describing..when you pull the trigger a little bit the cylinder latch raises out of its slot to allow cylinder rotation...when you release the trigger the latch is riding on the outer surface of the cylinder...the trigger has reset and will not cock until the latch has returned to the next slot. It has to do with the timing of the cylinder. It's by design.
THIS.
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Old April 15th, 2017, 05:17 AM   #10
 
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RockDoctor and Roche, sorry was reading this from my phone as computer was on the fritz, so this is normal and I am understanding the sequence and purpose of events you have laid out. I also checked it fot timing which seems to be fine. Now all that being said I still can not get my GP100 to do it. Thanks for the advice, much appreciated.
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Old April 15th, 2017, 05:52 AM   #11
 
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It does not sound normal. It sounds like something Ruger should fix. Call Ruger. Get it fixed.
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Old April 15th, 2017, 06:39 AM   #12
 
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Originally Posted by Doeysdad View Post
I can't get my GP 100 to do this. Either going to gunsmith or back to Ruger
Better yet...Call Ruger before you send it back and pose the question to them.
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Old April 15th, 2017, 08:23 AM   #13
 
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Why would you do that with your gun?
Just curious.

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Old April 15th, 2017, 09:28 AM   #14
 
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Originally Posted by Doeysdad View Post
RockDoctor and Roche, sorry was reading this from my phone as computer was on the fritz, so this is normal and I am understanding the sequence and purpose of events you have laid out. I also checked it fot timing which seems to be fine. Now all that being said I still can not get my GP100 to do it. Thanks for the advice, much appreciated.
You cannot get your GP100 to do it because it is functioning normal. It is not a revolver design feature as others stated. There is something wrong with the revolver.

A revolver functions as follows. If you begin a trigger pull, the cylinder stop will drop which will unlock the cylinder. The cylinder will begin to rotate as the hand rises. Meanwhile the hammer is cocking to the rear. The cylinder stop will pop back up when clear of the locking notch and ride on the cylinder. If you stop the trigger pull and release the trigger the cylinder will stop and stay where it was positioned when you released the trigger. The hammer will go back to rest. A second pull of the trigger will activate the hand which will reengage the cylinder and continue the process as if it was on pull one. The cylinder stop will engage the next chamber and a continued trigger pull will fire the revolver.

It is NOT necessary to "hand spin" the cylinder to the next chamber locking notch. Again there is a problem. Call Ruger and return the gun to them. Ruger CS is number one. You will have a correctly fixed gun back to you in a week or two.
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Old April 15th, 2017, 09:50 AM   #15
 
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As much as one can learn here on the Ruger Forum about our Ruger Revolvers it sounds like to me the OP's SP101 has a problem. Call Ruger Customer Service and make arrangements to send the revolver back. Ruger will repair the SP101 and return it back good as new!!!
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