Edit: this thread is from 4 years ago, but I have added a post on the end. I was finally able to make it a DT gun, and explained how that happened.
I have an Oklahoma duck and quail hunt coming up week after next, and have been planning all along to use my 626 Onyx. The gun fits me really well and had never given me any sort of problem until yesterday. I shot a few clays and suddenly the inertial triggers would not reset. I didn't notice anything different about the gun until I just didn't have a second shot. Either barrel will shoot if I manually move the selector, but it will not reset itself no matter which barrel I shoot first.
I pulled the action and soaked it in kerosene, blew out using the air compressor, and then added a light coating of CLP. That changed nothing. So I found a couple of videos of o/u guns that use inertial triggers and tried to better understand how it's supposed to work, then pulled the stock and pulled the trigger several times.
Homeless Joe will be glad to tell you that I am dumb, but I will admit I don't understand how this thing is supposed to work. And that I can't see it work is not giving me any clues as to what is wrong with it. I was going on a trip this morning that took me right by my gunsmith, so I tried to drop it off there. He was closed and it looked like he's been closed for several days.
So my only hope of being able to carry my favorite gun on my hunt is if some kind soul here can spot what is wrong and tell me how to fix it. I've done a good bit of amateur gunsmithing, but I can't understand how this thing works. Any help would be greatly appreciated.
Also, is there anyone on earth that could convert this to a DT gun? I suspect it would take fabricating some parts, but I'd be willing to pay a lot more than what most people would think reasonable. This would be the perfect shotgun for me if it only had 2 triggers.
This is a picture after the right barrel would have fired.