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Old 12-18-2011, 08:34 PM   #1
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Default single action

Has anyone had problems with the single action not working on a s&w. Double action pistol. It will engage when the hammer is preset.

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Old 12-18-2011, 10:11 PM   #2
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As it an older well used revolver? What model and did this happen while shooting. You could easy off the side plate and give it a cleaning and a few drops of breakfree clp and see if that helps. Or some parts warn down from dirt and dry conditions. But no never.

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Old 12-18-2011, 11:06 PM   #3
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Some LE departments removed the single action ability from their revolvers.

It was an attempt to dissuade the rank and file from creating a "hair-trigger" situation and make the firearms DAO.

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Old 12-19-2011, 12:41 PM   #4
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It was also fairly common to change to DAO when having the the hammer bobbed.

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Old 12-19-2011, 03:55 PM   #5
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Its a newer smith. I had it appart to duracoat the hammer and trigger. The problem is the spring inside the trigger wont cooperate. The spring is hitting a part to prevent the trigger from fully reseting.

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Old 12-20-2011, 03:02 PM   #6
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Boy that is one bone dry looking trigger group. Sure no dura coat build up were it should not be and did not cause in issues with parts bottoming out or roughness. Not a smooth looking insides at all. I will with a new revolver use wet/dry 1000 grit paper with some break free for lube on it and make a few pass's on all sides and wear areas just to besure they are smooth. Then lube. Might help .

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Old 12-20-2011, 06:43 PM   #7
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I have to admit that is the cleanest Smith I've seen in years. Others I have seen had some grease at contact points.

Have you made sure that the paint is not hindering spring travel?

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Old 12-21-2011, 04:53 AM   #8
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Gents
The problem was solved by cutting a very small section of the spring tip to prvent it from catching. I don't know what happened when i took it appart to duracoat the parts but the spring must have grown.
Thanks for the advice.

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Old 12-21-2011, 12:12 PM   #9
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I would think that a "grown up" spring would apply more force to resetting the trigger.

I've started doing a bit of revolver smithing myself, on my own 65-2 and a local sheriff's deputy's 36. I would think that trigger return block (don't know if that's the correct name, the device that holds the trigger return spring) would have been what was holding it.

In the future, I don't think it would be a good idea to do any coating on any internals.

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Old 12-21-2011, 12:55 PM   #10
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I agree coating the internals of a gun causes problems. I've done a few now and some have no problems others im still working on.

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