Need Help Troubleshooting Ruger GP100 Problem

[ejnogarb]

I took my Ruger GP100 to the range the other day after not shooting it for approximately 2 years (although I dryfire/practice with it regularly). After shooting it two years ago, I cleaned and lubricated it. This time, after firing twice, the trigger would not pull back and neither would the hammer. However, by manually rotating the cylinder, I was able to cock the hammer. When I brought it home to clean it, the same problem occurred when I dryfired it. The trigger would depress about halfway and then wouldn't go any further. Same thing when I tried to cock it. After cleaning and lubricating it, it functioned flawlessly

Can this problem be simply attributed to a lack of lubrication? Is there a likely internal problem? Would sending it to a gunsmith be advisable?

 

[RaceM]

When I got my GP (new) the first thing I did was play with it a lot, having heard that the action was rough out of the box. Didn't take long for it to develop a squeak on cocking, which lubrication got rid of. I suspect it was the knob on the mainspring strut rubbing hard in the dry hammer socket. Because of that I make sure that mine stays well lubed.

One thing I can recommend is to NOT follow the manual and use the mainspring strut as a takedown tool to pop out the trigger group. Putting burrs on the strut knob could cause the hammer to bind.

 

[ejnogarb]

Thanks for the reply. I'm looking into a gunsmith to refine the action.

 

[4v50 Gary]

If the trigger (and hammer) is locked, has it been released fully? Partial release doesn't allow the parts to reset and return to their normal position of rest.

 

[ejnogarb]

No, the trigger had been fully released. I know what you mean, but that wasn't it.