S&W Mod 10, sometimes locks up

Lord Grey Boots · July 15, 2007, 09:46 PM

I have an older S&W Model 10-5 with an intermittent problem.

Once in a while, say 5% of the time, after firing a round (or dry firing), the gun will lock up. IE, trigger won't move, hammer can't be pulled back.

I can open the cylinder, and close it, and it will work fine.

No obvious timing issues seen. It does appear to be related to a particular chamber (I am trying to confirm that). I don't see anything obviously wrong with the ejector star. I don't grok the revolvers operation enough to understand what would be the critical point that binding up.

Any suggestions on where to look?

http://www.genitron.com/IntRevolver.html

Doug.38PR · July 15, 2007, 10:36 PM

http://smith-wessonforum.com/eve/
I don't know the answer to your question but for what it's worth the above forum might provide a little more info as it is specifically S&W related.

S&W Revolvers: A Shop Manuel by Jerry Kuhnhusen is a good book on how S&W revolvers function that might help you.

I'm sure somebody will come by that knows plenty more than I do.

Lord Grey Boots · July 15, 2007, 11:09 PM

I have the Jerry Kuhnhusen book, haven't found anything in it yet that matches the problem, still looking though.

Doug.38PR · July 16, 2007, 05:02 PM

Try the S&W forum then. I'm surprised I'm the only one that's responded to you since your original post.

July 15, 2007, 09:46 PM	#1
Lord Grey Boots Senior Member Join Date: October 13, 1999 Location: Snohomish, WA Posts: 510	S&W Mod 10, sometimes locks up I have an older S&W Model 10-5 with an intermittent problem. Once in a while, say 5% of the time, after firing a round (or dry firing), the gun will lock up. IE, trigger won't move, hammer can't be pulled back. I can open the cylinder, and close it, and it will work fine. No obvious timing issues seen. It does appear to be related to a particular chamber (I am trying to confirm that). I don't see anything obviously wrong with the ejector star. I don't grok the revolvers operation enough to understand what would be the critical point that binding up. Any suggestions on where to look? http://www.genitron.com/IntRevolver.html

July 15, 2007, 10:36 PM	#2
Doug.38PR Junior member Join Date: January 18, 2005 Posts: 3,298	http://smith-wessonforum.com/eve/ I don't know the answer to your question but for what it's worth the above forum might provide a little more info as it is specifically S&W related. S&W Revolvers: A Shop Manuel by Jerry Kuhnhusen is a good book on how S&W revolvers function that might help you. I'm sure somebody will come by that knows plenty more than I do.

July 15, 2007, 11:09 PM	#3
Lord Grey Boots Senior Member Join Date: October 13, 1999 Location: Snohomish, WA Posts: 510	I have the Jerry Kuhnhusen book, haven't found anything in it yet that matches the problem, still looking though.

July 16, 2007, 05:02 PM	#4
Doug.38PR Junior member Join Date: January 18, 2005 Posts: 3,298	Try the S&W forum then. I'm surprised I'm the only one that's responded to you since your original post.