ORIGIN Orders

DGD6MM

Sergeant
Belligerents
Jun 30, 2010
265
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N. Florida
Well I followed the directions and added a more firing pin protrusion to the back of the bolt. I have another local match next weekend so well figure out if it work. Thanks again everyone and all the responses and support from the bighorn team!
How did it work out for you?
 

DDRH65CM

Private
Belligerents
Jun 27, 2017
512
201
49
Right around .090"
@BigHorn / ZAI Team
The post above you mention the Origin's pin protrusion from the shroud?
If so, what would be the correct protrusion for the TL3 (open bolt)?

I have both actions. have not built/assembled the TL3 yet (no trigger attached yet but will be using a TT Diamond), but looking at pin protrusion, seems like the Origin has almost 2x as much.

Is this OK?

as i understand it the Origin and TL3 bolt are slightly different (Bolt heads are the same).

Thanks!
 

Zermatt Arms

Machining Accuracy
Belligerents
Jul 24, 2017
232
692
99
Bennet, NE
www.bighornarms.com
@BigHorn / ZAI Team
The post above you mention the Origin's pin protrusion from the shroud?
If so, what would be the correct protrusion for the TL3 (open bolt)?

I have both actions. have not built/assembled the TL3 yet (no trigger attached yet but will be using a TT Diamond), but looking at pin protrusion, seems like the Origin has almost 2x as much.

Is this OK?

as i understand it the Origin and TL3 bolt are slightly different (Bolt heads are the same).

Thanks!
Yep, that's about right. The TL3 will be between .040" and .045" when the bolt is open.

The Origin has .050" more firing pin fall than the TL3 so, theoretically, you're going to see .040" from the TL3 and .090" from the Origin

Thanks - Ray
 

Jackomason

Career Poopatician aka "Turd Herder"
Belligerents
Dec 26, 2013
620
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Westcliffe Colorado
Just got my second bolt head in, fits and functions just fine. Although it has a slightly different sound/feel to it. Not as silky as the other one. Anybody have this? I assume itll go away as play with it enough.
 

RFutch

Sergeant
Belligerents
Sep 28, 2010
868
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Georgia
One of my three actions was kinda this way. The more I work it the better it gets. It wasn’t bad to begin with. Just splitting hairs.
 
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Dolomite_Supafly

Gunny Sergeant
Belligerents
Mar 15, 2009
552
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E. TN
Ray at bighorn has gone even further above and beyond for me this week! Couldn’t ask for anything better! AWESOME company
Their CS is amazing. After dealing with a 3 month Archimedes debacle I was cautious about buying another custom action. @Zermatt Arms answered every question I had before I bought my Origin.

After I got my Origin home I had .025" cock on close. I contacted them to buy the a cocking piece to correct it and they sent me one for free. That made a world of difference it how it felt now that the cock on close is zero. Then, after getting a recommendation from @Zermatt Arms, I got the low sear for my BnA trigger and now this thing is amazing.

I have not shot it yet but in the few hundred times I have ran the bolt it is getting even better.

Without a doubt you could not find a better company to deal with. They ALWAYS answer their phone, they ALWAYS respond to emails and they ALWAYS do what is right by their customer.
 

223Pete

Private
Belligerents
Jun 17, 2013
27
7
6
Yeah, Ray is a pretty decent guy along with the rest of the crew. Now we got to get Zermatt to offer prefit barrels for their actions and we'll be set. Kind of a one stop shopping scenario, what do you say Ray????;)(y);)(y);)(y)!

TM6
That would be great if they did!
 

kriller134

Private
Online Training Access
Belligerents
Jul 9, 2017
597
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99
orange county, ca
Hey guys can I get some guidance on how to fix a cock on close? I had a gunsmith fix it for me, but would like to try it myself (got a new firing pin assembly).
 

Zermatt Arms

Machining Accuracy
Belligerents
Jul 24, 2017
232
692
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Bennet, NE
www.bighornarms.com
Hey guys can I get some guidance on how to fix a cock on close? I had a gunsmith fix it for me, but would like to try it myself (got a new firing pin assembly).
You're going to be best off following the below advice. Measure the cock on close and let us know how much you have. We can get you the correct size cocking piece so everything matches up the best and you don't have to worry about changing the designed geometry.

Or you can call ray and tell him what trigger you have and he’ll set you up with a cocking piece designed for the TRigger. If you have a trigger tech it’s the u15. .015 shorter than the standard cocking piece
 

Jackomason

Career Poopatician aka "Turd Herder"
Belligerents
Dec 26, 2013
620
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Westcliffe Colorado
Or you can call ray and tell him what trigger you have and he’ll set you up with a cocking piece designed for the TRigger. If you have a trigger tech it’s the u15. .015 shorter than the standard cocking piece
I've got a trigger tech and I've taken off way more than .015 (about .065), my firing pin sits at about .085 but I still feel some cock on close if I run it slow. Is cock on close what I'm fealing or is there some kind of detent that needs to be overcome?
 
Last edited:

Dirtbiker250

Private
Belligerents
Sep 5, 2017
68
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24
I've got a trigger tech and I've taken off way more than .015 (about .065), my firing pin sits at about .085 but I still feel some cock on close if I run it slow. Is cock on close what I'm fealing or is there some kind of detent that needs to be overcome?
When you close the bolt.. does the pin drop a little then recock?
 

Zermatt Arms

Machining Accuracy
Belligerents
Jul 24, 2017
232
692
99
Bennet, NE
www.bighornarms.com
I've got a trigger tech and I've taken off way more than .015 (about .065), my firing pin sits at about .085 but I still feel some cock on close if I run it slow. Is cock on close what I'm fealing or is there some kind of detent that needs to be overcome?
You may still have a first revision bolt. There was a revision change very early in production and we've corrected most of them. If you could send me an email (ray@zermattarms.com), I'll get it sorted out with you.

Thanks - Ray
 
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lennyo3034

Gunny Sergeant
Belligerents
Apr 18, 2010
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Southern MD
And just to be crystal clear, there is not a functionality problem with the Rev1 bolts. They work just fine, but they are much harder to time without taking out a bunch of firing pin travel. Also, the Rev2 bolts create a heavier bolt lift because the ramp angle is steeper.

Thank you - Ray
Which one is closer to the bolt lift of the TL3?
 

TM6

Private
Minuteman
Feb 8, 2019
89
74
24
I've just put my build together with TriggerTech Special Limited Edition before Christmas on Origin Serial #200. I have .090" FP protrusion with bolt open and .115" closed, so .025" COC. Came with rev1 bolt and the std cocking piece. I've worked the bolt several hundred times, but still have the .025" COC. Emailed Ray, hopefully he can get me squared away too.

Take a look at post #1478 above with Dirtbiker250's photo, you should be able to see the difference between rev1 and rev2 by referencing the red arrows.

TM6
 

King_beardsly

MMPRL & Low Dollar Precision
Belligerents
Minuteman
Jun 12, 2018
593
228
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Beast Coast
just checked the serial number and it’s 238 so I’m guess it’s the rev1. Which now knowing it’s takes fair bit of pin travel to time makes sense after the modified cocking piece didn’t completely get rid of the over cocking.
 

Jackomason

Career Poopatician aka "Turd Herder"
Belligerents
Dec 26, 2013
620
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Westcliffe Colorado
:pNah, there are a couple other earlier threads/posts mentioning a bolt update so you aren't the primary trouble maker.

TM6
Ray's been so nice and good about it all. It is disheartening when your factory guns feel so much smoother and you've already gone gang buster with a file lol.

It does make me feel better that they arent such a small buisness anymore so they can handle this kinda thing. At least that's how it appears.
 

TM6

Private
Minuteman
Feb 8, 2019
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Ray had contacted me shortly after my email to him and is taking care of me as I type this.

Thanks Ray and the Zermatt Team!

Will
 

j3fff

Private
Minuteman
Sep 24, 2018
34
3
12
What is the suggested cocking piece with a triggertech primary? It seems like I’m getting a lot of cock on close with my origin as well....

Edit: I see above which one is recommended now and will contact Zermatt to see about getting it
 

Zermatt Arms

Machining Accuracy
Belligerents
Jul 24, 2017
232
692
99
Bennet, NE
www.bighornarms.com
If you believe you have a Rev1 bolt and are having actual issues with the function of your action, send me an email with a picture of the bottom of your bolt body where the cocking piece is held in relation to the cocking ramp and I'll advise what to do.

If you're not unhappy or having problems with the action, please don't email just for the sake of having something updated. There is nothing functionally wrong with any of the bolts on the market.

Thank you - Ray
 

TM6

Private
Minuteman
Feb 8, 2019
89
74
24
The Rev2 may make your problem worse if all you are concerned with is a smooth bolt, see post #1479 above. I take the risk of an even heavier bolt lift, but will have timing addressed for my chosen trigger, not Zermatt's chosen trigger. I had to send my entire bolt in for them to check out.

Either way, I'm very happy with my Origin and saving up for a LA build, you can bet it'll be on a Zermatt action.

TM6