Jewell Trigger Diagnosis Help Needed

[MikeMcCasland]

Shot a match today, and the gun abruptly stopped being able to cock the firing pin. I could get it to grab maybe one out of 20-30 times, and it would hold/shoot no problem. Efforts to readjust sear engagement, trigger weight, and overtravel made no difference.

It was acting the same as if it had way to little sear engagment, except when it would engage it was still the same 2-3oz pull I'm used to.

Action is a panda. Never blanked a primer with this action.

I got home today, tore the trigger apart, and don't see anything wrong with it.

Upon reassembly, and attempts at readjusting, it's still doing the same thing....what am I missing?

I can call Jewell, but it's pissing me off that I can't fix this on my own, and I figured I'd throw up the bat signal.

Edit: I have an identcal action/trigger/hanger setup, and when I pull the trigger off that one and install on this action, the issue is fine. I've tried two other panda bolts with it. Issue follows trigger.

 

[Bill Norris]

Following

 

[6BRA]

Action Timing — Process and Benefits Demonstrated « Daily Bulletin

Kelbly makes outstanding actions, including the Stolle Pandas. In the past 20 years, Pandas have probably won more benchrest matches than any other action (though BATs and Bordens are increasingly in the winning circle).

bulletin.accurateshooter.com

 

[MikeMcCasland]

Action Timing — Process and Benefits Demonstrated « Daily Bulletin

Kelbly makes outstanding actions, including the Stolle Pandas. In the past 20 years, Pandas have probably won more benchrest matches than any other action (though BATs and Bordens are increasingly in the winning circle).

bulletin.accurateshooter.com

I've already got .030 hangers from Kelbly. I'm too tired to measure, but 99.9% sure I'm somewhere between 250-260 thou of pin fall.

As far as getting it timed...this action has ~20,000 rounds on it. It may not be as fancy as something Alex has slicked up, but it's been reliable. I don't know why it suddenly fell on its face.

You'd think if it were something screwy with the bolt/fp the other two bolts I tried would have worked.

 

[whatsupdoc]

How many rounds on the trigger?

 

[MikeMcCasland]

How many rounds on the trigger?

A lot. I believe this one is original to the action.

 

[Dusty Stevens]

Send it to me if you cant figure it out. Ill get you fixed up

 

[davidjoe]

How does the cocking piece on the bolt look where it contacts the trigger?

 

[jelenko]

How about installing this trigger into the other action and testing with the bolt from the first action? Maybe there's something going on with the bolt, trigger action dimensions.

 

[rwj]

I experienced a similar issue with a different brand trigger. When closing the bolt, the cocking piece would sometimes not properly engage the sear. Fortunately, it was discovered when cycling the bolt on an empty chamber thereby avoiding a potential AD!

The root cause was that the trigger was not fully resetting. Simply pushing the trigger shoe forward after firing led to proper engagement each time. Trigger disassembly, cleaning, inspection, and spring replacement did not resolve the issue. There had to be some binding present that even the new spring could not overcome. Having not identified a distinct root cause, the trigger was discarded and a new one installed.

 

[butchlambert]

Check binding of the side plate. May need a slight resurface of the plate.

 

[jackieschmidt]

I have Jewel Triggers that are vintage ‘90’s. I flush them with lighter fluid periodically and not one has ever given me any trouble over thousands of rounds shot.

Failures are generally caused by accumulated grime or.not being adjusted properly.

By the way, I am waiting for one of the Kelblys to chime in on this whole “timing a Panda” thing.

It won’t be cinematic. . .