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682 Inertia block/trigger question

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6.2K views 17 replies 14 participants last post by  Frank C  
#1 ·
The second trigger does not release on occasion. Is it because of 1 ounce loads or something else? Any input would be appreciated. BW
 
#2 ·
I have been shooting Beretta's for a few years,,,I have had problems with lite 1 oz and 7/8 oz loads that were made for first shot in doubles,,,,triger would not set for second shot,,,,can be converted to mechanical trigers,,,try Coles
 
#3 ·
Before you do anything, change your selector and shoot your other barrel first.

If you still get a failure to reset, you have a trigger block problem. If the problem goes away, you may have a worn sear or other parts.

Knowing which it is will help Coles when you send it for service.

With this said, a mechanical trigger is more likely to fan fire than the original inertia trigger.
 
#4 ·
If the trigger does not set for the second shot you can try adding a little weight to the inertia block. A little square of lead tape stuck to the side of the block works well. The tape is called swing weight tape and is available at your local golf pro shop. HMB
 
#5 ·
TLC, If your Beretta works with loads other than one ounce help is at hand. Beretta make a light inertia block spring (molla massa) for just such problem. I fitted several when light loads appeared in the uk. I cannot remember the part number , the only difference being the lighter gauge of wire used. The part number is something like C54221/2 ???? ...no need to mess with anything else. Steve B
 
#10 ·
Take the stock off and observe the inertia block lever (just forward of the inertia block). The lever has to rotate somewhat up and forward to set the second trigger. Cock both triggers, release one, and manually rotate the inertia block rearward. If the lever spring is weak or broken, the lever won’t jump forward. Cole has the spring if needed but putting it in is a bitch.

Good luck.
 
#11 ·
If this is a problem that has just recently developed, as in the gun use to work well, then my guess is that the lower end of the inertia reset spring has broken off and needs to be replaced. New springs are available from Beretta USA at low cost, get two or three of them. Replacing the spring requires you to get into the lockwork and that is a bit intimidating, you may want to have a pro do this. A mechanical conversion is also an option you may want to consider.
 
#13 ·
several months ago I posted about replacing the spring.....I can do one now in 15 minutes with a toothpick and a piece of dental floss. If it comes to it, let me know and I will explain. (toothpick and floss....I am NOT kidding) Frank C.
 
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#15 ·
Lots of good gunsmiths will fix a 682. Gun Dr. on this forum is one, Coles in Maine is another. If the gun has always had this problem, there is some polishing that needs to be done, if gun has worked fine and has developed this problem - it needs repair. Either way, going to mechanical triggers will fix the problem.
 
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#16 ·
Could be stock wood swelling and interference with the block or other debris as well. Some people oil the gun too much and stand it up. Oil runs into the stock at the receiver.

best regards

ps my 2005? 682 skeet model (dunno bout yours) worked well even with 410 tubes
 
#18 ·
here you go bruce

Subject: Beretta 687 will not fire 2nd barrel Help Pls.
From: Frank C
Email:
Date: Thu, Jul 24, 2008 - 09:34 PM ET
Website Address:

Wolfram, I spoke with Ed Haley aka Tammers and taking his advice I used what I now call the "toothpick and dental floss" technique, the 1/4 inch piece of toothpick holds the spring in place in the inertia block and a loop of floss is used to lift up the tab end of the spring so it will lay backwards towards the rear of the gun, gentle pressure on the floss will lift the spring/tab and the inertia block falls easily into place, then just easily push out the toothpick with the pin and cut and slide out the floss.......10 minutes and good as new!!! Thanks to ALL for the advice, the floss is the key to tensioning the spring! Frank
 
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