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New Kolar trigger problems

13K views 47 replies 28 participants last post by  Pull & Mark  
#1 ·
I was squaded yesterday with some fellows that I never met before and one of them had a brand new Kolar that he just bought a couple days earlier. Well, this thing kept double firing in a bad way. The thing is, I've seen this before with Kolars and I heard that they are supposed to come out with another trigger design. Anyone know if this is true?
 
#4 ·
It was my understanding that this problem only happened with the stage I triggers. Not the newer stage II triggers!

This is the first I've heard of problems with the stage II triggers.

We had a fellow shooter who had problems with his stage I triggers doubling to much. Granted, he had a ton of shells through his shotgun in defense. He finally got Rags to do the stage II upgrade on his Kolar. After Kolar tried to fix his shotgun several times first, to no avail. After a few weeks he had the same problems again. He now shoots a Krieghoff!!! break em all Jeff
 
#7 ·
We had a fellow shooter who had problems with his stage I triggers doubling to much. Granted, he had a ton of shells through his shotgun in defense. He finally got Rags to do the stage II upgrade on his Kolar. After Kolar tried to fix his shotgun several times first, to no avail. After a few weeks he had the same problems again. He now shoots a Krieghoff!!! break em all Jeff
I have a friend that could tell the same story except his was with a new K80 and he now shoots a Kolar.

I've shot Krieghoff for many years with no problems and now shoot a Kolar(Stage I and Stage II) with no problems. However both are pieces of machinery and things can go wrong.
 
#8 ·
I have a year old low profile lightweight with double release's, no problems so far. Have many friends with stage 2 double release triggers that have shot them a lot with no problems.
 
#10 ·
assume you were shooting doubles? Did anyone else shoot this gun and have problems with it?

the stage II trigger is over a decade old now. I only know of one person who ever had a problem with a stage II fan firing or doubling....and that guy was a known idiot. He sold the Kolar and went back to his Browning....and the guy who bought the Kolar never had any issues with it.
 
#16 ·
Sporting or trap model?
Thought I heard that the pull weights were higher on the sporting models because sporting shooters would have a lighter hold on the gun (from unmounted positions) and would occasionally pull the trigger twice really quickly because of the recoil bounce.
 
#18 · (Edited)
Single triggers on double barrel guns are designed specifically to prevent this.

"Designing and building a single trigger for the double-barreled shotgun...is complicated by a little-known phenomenon called either the "intermediate" or "involuntary" pull. When a shoulder arm recoils, it carries the trigger hand backward with it. At some point, however, the recoiling arm meets resistance and rebounds. The rebounding action thereupon drives the trigger forward against the shooter's still-flexed finger, and the shooter involuntarily unseats the second lock.....This all happens so quickly that a gunner cannot avoid it by his own actions. Only mechanical means can negate firing because of involuntary pull by delaying the second trigger/sear engagement on a single-triggered double until the effects of rebound movement have quieted....
The single-trigger mechanism of a double-barreled shotgun,then, must be deigned and timed to negate the involuntary pull by providing an intermediate pause between sear engagements.
For if no mechanical consideration were involved, the shooter's involuntary action would trigger the second barrel immediately after the first while the piece was still misaligned by recoil energy. It would give almost the same sensation as a fully automatic weapon or a faulty firearm that "doubles."
Gunmakers circumvent the involuntary pull phenomenon by working delays into the single trigger, thus prolonging the time between trigger disengagement with the first sear and engagement of the second. There are two distinctly different methods of engineering a delay factor in single triggers. One is called the "three-pull" system; the other is simply known as a "delay-type" or "timing-type" mechanism.
As its name implies, the three-pull system requires three definite pulls to fire just two barrels. The first pull fires the initial tube, after which the trigger shifts to a second, or intermediate, stop position that prevents immediate engagement of the opposite sear. The involuntary trigger pull then releases the the trigger from this intermediate notch, whereupon it swings to the remaining sear. When dry-fired, a double with a three-pull single trigger requires three positive pulls to complete the sequence. With live ammunition, however, the involuntary pull is hidden by recoil disturbances, and the shooter must consciously will only the first and third pulls.
Very few gunmakers use the three-pull system, but Woodward, Holland & Holland, and Boss have experimented with it....
A single trigger with the delay-type or timing-type mechanism requires only two trigger pulls. But it also needs a mechanical pause to offset the involuntary pull, for if the single trigger is not in "neutral" for the short time after the initial voluntary trigger pull, recoil-caused involuntary action will discharge the double's second barrel prematurely....
Inventors have had great sport with the timing-type single trigger, fashioning myriad models..."

Don Zutz, "The Double Shotgun, Revised, Expanded Edition" pages 55-58, copyright 1978
 
#19 ·
All that crap above is hogwash! If it were true, a shooter shooting a double release would automatically set the second barrel every single time he shoots the gun, which we know is not happening.

and guys who shoot thousands each of 12 ga and 410 each year , using the same gun, would be able to tell the difference between the recoiling 12 vs the non-recoiling 410. Believe me, you can’t.
 
#21 ·
All that crap above is hogwash! If it were true, a shooter shooting a double release would automatically set the second barrel every single time he shoots the gun, which we know is not happening.
It was returned to Kohler
and guys who shoot thousands each of 12 ga and 410 each year , using the same gun, would be able to tell the difference between the recoiling 12 vs the non-recoiling 410. Believe me, you can’t.
A friend of mine bought a new Kohler about 1 1/2 years ago. The gun would not
fire out of the box. Trigger was dead. It was returned to Kohler. No problems
since it was fixed. It was a pull trigger.
 
#25 ·
Ok--I'll bite--How do you tell a Stage 1 from a Stage 2 trigger?
FYI-I shoot a Kolar. Last year it started NOT shooting the second barrel. I called them and was told to remove the trigger group, clean it thoroughly, LIGHTLY OIL it and blow it dry.. The inertia block was not moving correctly. I did. No more problems. Now I do this about every 3,000 rounds. Had it changed to release triggers (I shoot a release pull) and have had no more problems.
This is not what was asked in the post but I thought it might help someone else later.
Love my Kolar!
Jim
 
#26 ·
Had a 2lb trigger in a 223 AR and it worked fine. Put a 450BM upper on it and I would double every once in a while. Put a 3.5 trigger in it and it stopped. I'm sure it was a combination of recoil and reset that made it double
 
#31 ·
Mine is 2010 series I
Was Fan firing sent (complete combo) up FedEx to Kolar on a Monday to have Trigger serviced by Cody was back in hands on Saturday and works perfect.
Contact Kolar ask for Cody for the fix. posting on here will not fix gun. Best shooting to you.


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