Author Topic: Revolver timing?  (Read 938 times)

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Offline handgunhuntr

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Revolver timing?
« on: March 11, 2004, 08:00:15 AM »
Is it possible for a revolver to go "out of timing" which would cause a misfire or the gun to jam? If so how does this happen?
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Offline Mikey

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Revolver timing
« Reply #1 on: March 11, 2004, 08:38:03 AM »
handgunhuntr:  Yes, a revolver can go out of timing.  I am not the most knowledgeable on this but I do know it happens.  I have had this happen with both S&W and Colt revolvers.  

From my limited experience I think the cause was the interface between the advancing hand and the indexing star (er whatever it is called) on the back of the cylinder.  The indexing star would get gouged where the advancing hand impacted and after a while the cylinder would not advance to the proper position.  I would get lead shaving and spitting as well as powder blown back at me.  In real severe cases I can understand how it would cause a misfire by not properly indexing the chamber so the firing pin would properly impact on the primer, or if it was that far out of time it may cause enough lead shaving to jam up the piece.

My only cure at the time was to either send or carry the revolver back to S&W for repair, and they always fixed it properly (until I broke it again).  Colt, on the other hand, didn't want to see a guy in uniform bringing back a Python for repair and would send me on my way telling me to send it to one of their factory repair shops.  

But, if you have a revolver out of timing, call or e-mail the factory and see what they recommend for repair.  Hopefully they will take car of the problem for you.  

Maybe some of the other folks have some better suggestions.  HTH.  Mikey.

Offline Flint

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jamming
« Reply #2 on: March 11, 2004, 03:17:36 PM »
A revolver can jam if the bolt drops into the cylinder notch so early that the cylinder can't turn when you try to cock it.  Or the bolt (same effect) drops off the cam or plunger that actuates it, or does not reset.  This does not have to involve chamber misalignment at all, it can be a mechanical entanglement between the hand, bolt and hammer (or trigger if it's a trigger mounted hand)  Of course, a jam also occurs with a high primer or a bullet creeping out of a case from recoil, usually from insufficient crimp.  Black powder fouling will stop a revolver very effectively.
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