Author Topic: Cimarron Schofield Cylinder Gap & Endshake  (Read 1000 times)

Offline TheTinMan

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Cimarron Schofield Cylinder Gap & Endshake
« on: February 24, 2023, 05:25:25 PM »
I just went to pick up a brand new Uberti/Cimarron Model 3 Schofield but came home empty handed. The cylinder gap is .005” when pushed forward and .009” when pushed back. I know that .004” is far too much endshake for any revolver.

What is the acceptable range for the cylinder gap? 

Is this a common problem with this model?  I’m familiar with Colt and S&W double action revolvers but this one is entirely new to me.

Sadly I’m returning this to the seller. Hope they have a good one in stock…

Chip

Offline Johnson Barr

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Re: Cimarron Schofield Cylinder Gap & Endshake
« Reply #1 on: February 25, 2023, 02:37:47 PM »
Did you make your measurements with cartridges in the chambers?
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Offline August

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Re: Cimarron Schofield Cylinder Gap & Endshake
« Reply #2 on: February 25, 2023, 05:24:39 PM »
My experience with eyetalian revolvers is that such issues are always present.   I have relied on a company that makes cylinder shims for getting things set up properly. 

https://www.triggershims.com/cylinder_shims.php#S9

Hope this helps.

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Re: Cimarron Schofield Cylinder Gap & Endshake
« Reply #3 on: Today at 08:00:04 AM »

Offline Coffinmaker

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Re: Cimarron Schofield Cylinder Gap & Endshake
« Reply #3 on: February 25, 2023, 07:42:45 PM »

 :) TinMan  ;)

I'm not real sure I understand your Daffy-Nitions.  You're "pushed forward" (from where??) and pushed back (from where??)   

Normally, we start with Head Space.  Nominal Head Space is considered to be .004 - .005, measured with cartridges (dummy) and measured between the recoil shield and cartridge head.  Then we look at Barrel to Cylinder Gap and End Shake.  There are varying opinions on Barrel to Cylinder Gap.  However, End Shake should be held to .001 or .002 with the resulting Barrel to Cylinder gap of .004 or .005

People ARE Hazardous to Yer Health!!

Offline TheTinMan

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Re: Cimarron Schofield Cylinder Gap & Endshake
« Reply #4 on: February 25, 2023, 11:42:52 PM »
Did you make your measurements with cartridges in the chambers?

No. 

I have never heard of doing that for a double action revolver with a swing out cylinder. Is this something unique to top break actions?

Offline TheTinMan

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Re: Cimarron Schofield Cylinder Gap & Endshake
« Reply #5 on: February 25, 2023, 11:44:49 PM »
My experience with eyetalian revolvers is that such issues are always present.   I have relied on a company that makes cylinder shims for getting things set up properly. 

https://www.triggershims.com/cylinder_shims.php#S9

Hope this helps.

Thanks - got an envelope from them last week to get an Uberti 1873 lever squared away.

Offline TheTinMan

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Re: Cimarron Schofield Cylinder Gap & Endshake
« Reply #6 on: February 25, 2023, 11:59:56 PM »
:) TinMan  ;)

I'm not real sure I understand your Daffy-Nitions.  You're "pushed forward" (from where??) and pushed back (from where??)   

Normally, we start with Head Space.  Nominal Head Space is considered to be .004 - .005, measured with cartridges (dummy) and measured between the recoil shield and cartridge head.  Then we look at Barrel to Cylinder Gap and End Shake.  There are varying opinions on Barrel to Cylinder Gap.  However, End Shake should be held to .001 or .002 with the resulting Barrel to Cylinder gap of .004 or .005

People ARE Hazardous to Yer Health!!

In this case, the minimum cylinder gap is .005.  Maximum cylinder gap is .009 without any cartridges in the cylinder. I’m not wild about the idea of counting on cartridge case heads to close up an excessively large cylinder gap.

Offline Coffinmaker

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Re: Cimarron Schofield Cylinder Gap & Endshake
« Reply #7 on: February 26, 2023, 09:46:08 AM »

 :)  TinMan  ;)

That's how it usually works.

Offline TheTinMan

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Re: Cimarron Schofield Cylinder Gap & Endshake
« Reply #8 on: March 01, 2023, 10:43:05 PM »
I talked with Cimarron and they said “that gun needs to come back to get fixed.”  The seller agreed to pay to ship the gun back and give me a refund.  However, Cimarron said that it would be covered under warranty and they would send me a shipping label. The guy there also said that they wouldn’t be getting any more of these “for at least a year.”

I decided to accept the gun and will ship it directly to Cimarron to get the problem corrected.

Offline DeaconKC

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Re: Cimarron Schofield Cylinder Gap & Endshake
« Reply #9 on: March 02, 2023, 10:03:19 AM »
Cimarron has been having QC issues with the Schofields. I just got mine back from them for replacing a cylinder where one of the cartridge holes was out of spec.
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