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Cylinder "Truing"
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maxfam
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September 13, 2011 - 12:27 pm
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Does anyone have any knowledge or experience with "TRUING" the face of Dan Wesson Cylinders so you can get a more accurate measurement of the barrel/cylinder gap? I have 3 supermags, 357, 375 and 445 that all have tight and loose places when setting the gap as measured at the 6 different detent locations of the cylinder. I have not yet contacted any Gunsmiths, thought maybe someone here may know of one that HAS done this kind of machining for them. Any thoughts or ideas you have are appreciated.

 

"Good judgment comes from experience, most experience comes from bad judgment".

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SHOOTIST357
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September 13, 2011 - 3:29 pm
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I spun one of mine up on the lathe to square it up--not sure if it was really worth the effort to smooth out  a few thousandths.  Not to mention I had to repolish and blue the cylinder when I was done.

SHOOT

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DakotaJack
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September 13, 2011 - 7:47 pm
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maxfam – parallelism between the cylinder and barrel faces is not only affected by the cylinder.  The crane arms (both the frame mount side and the cylinder mount side) must both also be parallel and mounted in the frame parallel to the barrel.  All these dimensions (as well as the barrel threads and the bore in the frame the crane mounts) affect the cylinder gap you are talking about and if any one of them is out it will throw out the parallelism between the barrel and cylinder faces.  You'll be chasing your tail trying to change it. 

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Steve
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September 13, 2011 - 8:49 pm
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maxfam's question is one I have wondered about as well. It seems like, at first glance, that truing up the cylinder should be a straightforward process, but the result may not be worth it. If I understand harly correctly, you can true up the face and have a consistent gap, but the chamber may still not be truly parallel to the bore (ie-the cylinder can be slightly canted in relationship to the bore axis).

My guess is that this can occur with any revolver brand, is that correct? Would a DW be more/less/the same in this respect with S&W, Ruger, Colt, etc.?

I went to a bookstore and asked the saleswoman "Were is the Self Help Section?" She said if she told me, it would defeat the purpose.

George Carlin

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Dave_Ks
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September 13, 2011 - 10:00 pm
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Shoot did it make any difference other than having to rework the bluing?  I would think once latched in all would hold true, though if any part was not a good fit to begin with then it maybe a waste of time!  I have a 715 that i need to work on in this respect as the previous owner used a file on it!  When i do I will let you know! 

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SHOOTIST357
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September 13, 2011 - 10:21 pm
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It made me "feel better" about the gun... It had an even B/C gap after I was done on all 6 cylinders.

Like Harly stated though-- there are other factors to consider.  I wouldn't waste my time truing up a loose beater... mine was pretty much flawless except for the gap.

Now if it has been beat with a file... by all means have at it !!!

SHOOT

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rwsem
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September 13, 2011 - 11:43 pm
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This is why (truly) custom revolvers cost a bit more- the cyliders are line bored to ensure alignment between chamber and bore.  On any production revolver there can be misalignment issues.  I don't suppose Dans are any worse or better- depending on QA checks.

Technically, the glass is always full; half liquid, half air....

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