Tikka trigger spring fail

[Formidilosus]

not arguing here just curious. couldn't you throw an aftermarket screw in that is much more flexible and provides a better break when pulling trigger (my understanding of why one would buy this in the first place). Then just back it out to the trigger housing screw like you would with a factory and have a better trigger but still safe?

Trying to decide what I want to do on mine

Do what? The screw has nothing to do with it. The spring is what keeps the trigger working and safe. Do not touch the trigger or spring besides backing that screw off until it contacts- at most.

2.5lbs is already too light for a field trigger for the vast majority of people and uses. Going lighter than that just causes issues.

 

[Marbles]

not arguing here just curious. couldn't you throw an aftermarket screw in that is much more flexible and provides a better break when pulling trigger (my understanding of why one would buy this in the first place). Then just back it out to the trigger housing screw like you would with a factory and have a better trigger but still safe?

Trying to decide what I want to do on mine

Amount of tension applied to the trigger is what makes it safe. This is controled by spring compression (how far out the screw is) and spring force (how strong the spring is).

Any combination that results in too little force (that lightens the trigger below say 2 pounds) results in decreased safety.

The factory spring appears more durable than most aftermarket springs. So messing with the screw to change spring compression might be more predictable over time than changing the spring. You still have a trigger that is compromised from a safety standpoint when compared to original design.

KRG talks about this on the page for their Midas trigger.

You cannot cheat physics's.

 

[NWBLKTAIL]

I just swapped all mine back to factory last night. Thanks for posting this. I only had one range session with the aftermarket springs before this got posted.
I never had a problem with factory springs to begin with so didn't feel worth it to chance it even if odds are low

 

[NSI]

Have we found a reliable source of factory springs yet?

-J

 

[JohnJohnson]

Have we found a reliable source of factory springs yet?

-J

Unless their description is lying, the OEM option for this one seems like it'd be the one. Right?

Tikka Trigger Spring -

Tikka Trigger Spring intended for use in Tikka T3, T3x, T1x, CTR - Sako model 75, 85 & A7. Zinc plated for a lifetime of service.

jaoutdoors.com

 

[General RE LEE]

I never had an issue with the Mountain Tactical trigger springs.

 

[JohnJohnson]

Has anyone run into any issues with a KRG Midas?

 

[B_Reynolds_AK]

I’ve been using a KRG Midas this winter, shooting quite a bit out in the snow and cold. No issues.

However I just picked up another one and installed it today. It is a recent production and it felt significantly different than the first one. The 1st pull weight does not adjust hardly at all. I took out the first adjust spring and it’s completely different than my first, being much lighter.

I sent off an email and hopefully can connect with someone Monday.

 

[JohnJohnson]

I’ve been using a KRG Midas this winter, shooting quite a bit out in the snow and cold. No issues.

However I just picked up another one and installed it today. It is a recent production and it felt significantly different than the first one. The 1st pull weight does not adjust hardly at all. I took out the first adjust spring and it’s completely different than my first, being much lighter.

I sent off an email and hopefully can connect with someone Monday.


View attachment 857197

That doesn't fill me with confidence. I have one arriving on Monday. Let us know what they say to you please.

 

[longrangelead]

Follow up to OP:

I left the aftermarket spring in my RSS 223 for a couple range sessions to see if it would fail again.
it did...
no AD's, but running the bolt hard and fast, closing on an empty chamber it would release the firing pin about 50% of the time.

Then I put the factory spring back in. backing it out to hard stop was about 1.8lb pull and would also let the firing pin fall more often than not. that was simply running it dry in the shop.
I turned it up to about 2.2lb and couldn't get it to do it after that.

I've since put around 400 rnds through it without issue.

 

[Antares]

Follow up to OP:

I left the aftermarket spring in my RSS 223 for a couple range sessions to see if it would fail again.
it did...
no AD's, but running the bolt hard and fast, closing on an empty chamber it would release the firing pin about 50% of the time.

Then I put the factory spring back in. backing it out to hard stop was about 1.8lb pull and would also let the firing pin fall more often than not. that was simply running it dry in the shop.
I turned it up to about 2.2lb and couldn't get it to do it after that.

I've since put around 400 rnds through it without issue.

This seems like an important post. Just to be clear, you’re seeing consistent, repeatable failure with the factory spring installed?

 

[waspocrew]

This seems like an important post. Just to be clear, you’re seeing consistent, repeatable failure with the factory spring installed?

Wanting to see this clarified as well.... failure with factory spring?

 

[longrangelead]

t

This seems like an important post. Just to be clear, you’re seeing consistent, repeatable failure with the factory spring installed?

to clarify, the failure started with the replacement spring.

After I reinstalled the factory spring, it failed also when below 2lb. After turning it up to 2.2lb, it has not failed.

The difference is the replacement spring is much smaller wire. After installing the replacement spring, I set it at 2lb. After approximately 1600 cycles it failed. I turned the adjustment screw in 1 full turn which again put it at 2lb.
After approximately another 400rnds, the replacement spring failed again repeatedly.

The adjustment screw was paint penned so no, it was not backing out.

 

[waspocrew]

t

to clarify, the failure started with the replacement spring.

After I reinstalled the factory spring, it failed also when below 2lb. After turning it up to 2.2lb, it has not failed.

The difference is the replacement spring is much smaller wire. After installing the replacement spring, I set it at 2lb. After approximately 1600 cycles it failed. I turned the adjustment screw in 1 full turn which again put it at 2lb.
After approximately another 400rnds, the replacement spring failed again repeatedly.

The adjustment screw was paint penned so no, it was not backing out.

Thanks for the clarification.

Still seems like an issue when the factory spring now fails below two pounds. I’d be curious to hear if you see another failure after xxx many rounds like you experienced with the after market spring.

 

[HuntHarder]

I know some of you guys run your bolts like Raped ape's, Maybe that helps contribute to the problem. I have owned Tikka's for over 20 years and never had something like this happen. Probably somewhere in the ballpark of 15-20 of them. Many years ago, I worked in a couple guns stores thru college and never heard of this issue then either. I would say over half of mine, have had or still do have, the aftermarket springs in them as well. I put no where near as many rounds as some of you guys do down range, but I would bet a few of them had a few thousand rounds on them. I hope it never happens, time will tell I suppose.