So, what could be wrong with my 625JM?

[stevieboy]

My 625JM has developed a strange problem. Whether I fire it in double or single action, and regardless whether there are rounds in the chambers or whether I'm simply dryfiring on an empty cylinder, I get heavy resistance on two of the six chambers. The gun will cycle very smoothly for four rounds, then, on the fifth and sixth, the trigger will cycle only with great difficulty. In single action it takes considerable effort to force the trigger back. In double action, the trigger requires at least 20 pounds of pressure to cycle. I've checked to see whether the cylinder is binding against the forcing cone, and it isn't. The ejector star is seated firmly and evenly and there's no dirt underneath it. The cylinder spins freely and easily when opened and the ejector rod does not appear to be bent. So, what could be the problem? I'm stumped.

 

[Bullseye Smith]

Is it a new or older gun? If a older gun the extractor rod may be bent, has anyone been playing cowboy with it (just kidding). Open cylinder and spin it and watch the extractor rod. If it is a new gun it may need to be broke in well, put some white grease on the extractor where the hand meets and run a few cycles and see if it lossen up some.

 

[charlix]

hard turn

I had that on a 617 mostly when it was cold; Grease got stiff on the cylinder stop and wouldn't let the stop fall correctly. A little wd-40 cured it.

later charliex

 

[Stainz]

Is the ejector rod loose? It's a LH thread, so turn it while holding the released cylinder. It tightens CCW, loosens CW.

Stainz

 

[MINI SSS]

This happened to my shooting partner at the range yesterday. Very hard trigger pull on one of the six cylinders. WE found a burr on that cylinder's ( don't know the name but it's the rear part of the cylinder with cuts for the hand to rotate the cylinder ).

 

[stevieboy]

It's an older gun that I bought used last year and yes, I've thought about the possibility that the ejector rod could be bent. It doesn't appear to wobble, however and the cylinder spins freely when opened.

 

[scott625b]

Are you using steel moonclips? There are times that the steel clips get bent, especially when using the pliers type of demooner. Try some autorims to see if the problem still exists. Try some RIMZ 625 clips and see if the problem exists. If these examples do not help, call S&W.

 

[stevieboy]

Scott, it's not a problem with the moonclips. I wish it were that simple. The problem persists even after I eject a clip from the gun. The trigger will become heavy and resistant even when I dryfire with an empty cylinder. Something's hanging up on two chambers, I just can't figure out where it is or why it's happening.

 

[Bullseye Smith]

Check the back side of the extractor itself for something, Look at the lock work on the extractor and see if there is any damage to it. Wish I had the gun in front of me, I would fix it for you. My computer and writing skill are very poor, but give me a screw driver and I can tear anything up .

 

[stevieboy]

Spoke to the smith today. He's diagnosed the problem as a barrel-cylinder gap issue. The gap ranged from .001 to actual rubbing of cylinder face against forcing cone. He's regapped it at .006 and tells me that all is fine. I'll pick the gun up tomorrow and we'll probably go straight to the range, so I'll know for sure pretty soon.