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 Post subject: Beretta 686 trigger issue
PostPosted: Sun Jun 03, 2018 9:44 pm 
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My 686 sp works fine 90% of the time. However, 2 or 3 times during a round of trap the trigger has a 'grabby' or 'notchy' feeling (usually causes a miss). Even worse, the trigger will occasionally be locked up and not move at all, as if the safety is on. When that happens, I check to see that the safety and barrel selector are positioned correctly and they always are. Without doing anything, I remount the gun, call a target, and it works perfectly.

Two gunsmiths have looked at the gun and neither has found anything wrong and neither could replicate the problem. I had someone at my club shoot the gun and he did have the same thing occur. The prevailing opinion at my shooting club is that its an inertia block problem rather than a problem with the trigger, but nobody has seen this before.

The problem started to occur after I'd put about 6,500 rounds through it. I shoot factory 1 oz loads. Any help or advise would be appreciated - I'm at a total loss and my scores are suffering.




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 Post subject: Re: Beretta 686 trigger issue
PostPosted: Tue Jun 05, 2018 10:23 am 
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Is it possible that you could be trapping the trigger, not fully releasing it after the first shot?


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 Post subject: Re: Beretta 686 trigger issue
PostPosted: Tue Jun 05, 2018 12:18 pm 
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He says 2 or 3 times during a round of trap. I think his problem is on the first shot, not the second.

This makes me wonder if the inertia block can be involved as there is a standoff that keeps the inertia block away from the sear on the first shot. The first shot trips the sears via a pair of levers in the bottom of the trigger group. I suspect somehow the sears are not quite meshing correctly with the levers.

Or perhaps the safety is messed up slightly and blocking the trigger.

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 Post subject: Re: Beretta 686 trigger issue
PostPosted: Tue Jun 05, 2018 12:39 pm 
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Yes, the problem occurs on the first shot. I should have mentioned that the problem occurs regardless of which barrel is fired first. If I'm understanding what you're saying, you don't think its could be a problem with the inertia block. Thanks for the help.


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 Post subject: Re: Beretta 686 trigger issue
PostPosted: Tue Jun 05, 2018 1:46 pm 
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I'd be inclined to think that the safety is moving under recoil, eventually blocking the trigger. Thats the first think I'd look at anyway - and is easily accessed and simple to work on. (not a gunsmith - just own a couple 68x series Berettas and I work on them from time to time)

If there is something wrong with the sears and the levers in the trigger group - that takes someone pretty competent to take the trigger group apart and work on the sears. As in - send it in to an authorized Beretta service center like Coles Gunsmithing in Maine. There are other very good trigger guys out there also - Philip Crenwelge comes to mind.

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 Post subject: Re: Beretta 686 trigger issue
PostPosted: Wed Jun 06, 2018 1:19 am 
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Thanks for the reply, John H. Cole's in Maine is one of the gunsmiths that's had a look at it but unfortunately, couldn't replicate the problem or see anything that seemed wrong. I'm like you and thought it could be that the safety was moving internally somehow and asked Cole's about it. They said that if the safety selector felt positive its unlikely that's the problem. I tried to send it to the best Beretta specialist I could find, and if Cole's can't fix it, I don't know who can. Maybe I'll just keep shooting it and hope it gets worse so they have a better chance to diagnose it.
Best regards.


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 Post subject: Re: Beretta 686 trigger issue
PostPosted: Wed Jun 06, 2018 5:21 am 
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Some wild guesses.

Are there any unusual scratches in the inletting? And with the receiver out of the stock and the bolt in check the distance the bolt sticks out that goes into the receiver. Make sure it doesn’t go too far into the receiver. Make sure all the washers are in place.

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 Post subject: Re: Beretta 686 trigger issue
PostPosted: Wed Jun 06, 2018 7:30 am 
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It is possible you are not opening the gun fully. This could be the reason no one else can replicate the issue and it only occurs with you.


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 Post subject: Re: Beretta 686 trigger issue
PostPosted: Wed Jun 06, 2018 7:40 am 
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bobber68 wrote:
My 686 sp works fine 90% of the time. However, 2 or 3 times during a round of trap the trigger has a 'grabby' or 'notchy' feeling (usually causes a miss). Even worse, the trigger will occasionally be locked up and not move at all, as if the safety is on. When that happens, I check to see that the safety and barrel selector are positioned correctly and they always are. Without doing anything, I remount the gun, call a target, and it works perfectly.

Two gunsmiths have looked at the gun and neither has found anything wrong and neither could replicate the problem. I had someone at my club shoot the gun and he did have the same thing occur. The prevailing opinion at my shooting club is that its an inertia block problem rather than a problem with the trigger, but nobody has seen this before.

The problem started to occur after I'd put about 6,500 rounds through it. I shoot factory 1 oz loads. Any help or advise would be appreciated - I'm at a total loss and my scores are suffering.


Have you dunked the receiver in a pan of solvent recently? If not, I suggest you do that. It's possible that some foreign object/matter is in there and fouling up the trigger. Lubricate it well afterward with Breakfree CLP or similar. It's possible the trigger spring is "catchy".

If that doesn't fix it, I would disable the safety so that it CAN'T be applied. That will assure that it's not the safety. I know you said you "check" the safety, but this checking with your thumb may be moving it slightly.

If it sometimes doesn't fire with the first pull of the trigger as you said, but it always fires with the second pull of the trigger after you've "checked" it, then perhaps the checking is fixing the problem. The next time it happens, don't do anything other than pause for a moment, and then pull the trigger again to see if it fires.

I'm of the opinion that it's a foreign object (sliver of metal, burr, or something) or else it's lack of lubrication, or the safety is engaging just enough to prevent the trigger being pulled. Those are my guesses and I would make 100% sure they aren't the problem before doing other more expensive things.

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 Post subject: Re: Beretta 686 trigger issue
PostPosted: Wed Jun 06, 2018 8:49 am 
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A new gun would fix it! :D


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 Post subject: Re: Beretta 686 trigger issue
PostPosted: Wed Jun 06, 2018 1:16 pm 
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Dr Duk may have a good idea!
But to follow up on some of the suggestions - Both gunsmiths cleaned the action and Cole's did a complete clean and service. I'm sure I open the action fully and another shooter did experience the same problem. Most seem to think its something involving the safety, but I'm also interested in dcblvsh2's suggestion about the bolt stock extending too far into the receiver. Would it interfere with the trigger or safety?
Thanks everyone.


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 Post subject: Re: Beretta 686 trigger issue
PostPosted: Wed Jun 06, 2018 1:55 pm 
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bobber68 wrote:
Dr Duk may have a good idea!
But to follow up on some of the suggestions - Both gunsmiths cleaned the action and Cole's did a complete clean and service. I'm sure I open the action fully and another shooter did experience the same problem. Most seem to think its something involving the safety, but I'm also interested in dcblvsh2's suggestion about the bolt stock extending too far into the receiver. Would it interfere with the trigger or safety?
Thanks everyone.


Here's my opinion. The only way to be sure the action was SUFFICIENTLY cleaned and lubed is to do it yourself. Not saying that the gunsmiths would lie to you, but their definition of "clean and lube" may differ from mine... or maybe the gun looked clean so they didn't figure they needed to do much additional.

It could be just as likely a lack of lubrication (in my opinion) as a dirty/grimy problem. After all, the gun functioned fine for 6,000 or so rounds before the problem showed up, so I automatically suspect some cleaning/lubrication issue unless something came loose, wore out, or broke.

With all respect to DCB, I'm skeptical that it's a stock bolt problem. Again, the gun functioned well for 6,000 rounds with no one touching the stock bolt, and bolts don't generally get tighter by themselves. Also, for the stock bolt to be the problem, it means the gunsmiths would have also had to put the bolt back in too tight/far. And finally, if the bolt is in too far, why wouldn't it stop the gun from working correctly all the time instead of just occasionally?

If you're hesitant to pull the stock, that's understandable, but it's not difficult and you really should learn how to do it if you're going to own and shoot an O/U or most any kind of gun.

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 Post subject: Re: Beretta 686 trigger issue
PostPosted: Wed Jun 06, 2018 3:46 pm 
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I agree with ulysses. A stock bolt set in too far will cause problems - but they are unlikely to be intermittent. If you can put the gun on safe and move the barrel selector the stock bolt can't be the problem.

If I recall correctly, when the safety is off and the trigger is pulled the the back of the trigger lifts up and moves the lever associated with the selected bbl. Something is blocking that from happening. When the safety is on, I believe the safety blocks the back of the trigger from moving up. (poorly described- but best I can do) I.E. There is a feature on the back of the trigger that lifts the levers that then trip the sears. The safety blocks that surface or feature from lifting. Somehow on your gun, even with the safety moved into the forward position, something is blocking the trigger from operating - intermittently. Maybe the safety mechanism is bent, or loose? It really shouldn't be that hard to figure out if the trigger assembly is removed from the gun. I'm surprised Coles couldn't figure it out.

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 Post subject: Re: Beretta 686 trigger issue
PostPosted: Wed Jun 06, 2018 7:05 pm 
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This is all great stuff. I've been chicken to take the stock off but I'm going to get a little supervision and go in. Here's something else I found out today. If you dry fire the gun, both barrels will fire without recoil to select the second barrel. Something is really going on in there. These things are complicated contraptions.




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