Omark triggers

Gtown · Post by **Gtown** » Sun May 20, 2012 8:12 am

Hi all,

Seeking advice on Omark triggers. I do like my old girl, but I am a bit over having to use the winch on the four wheel drive to pull the trigger!!

I notice on the Association website that there are two Omark triggers, an F class and an Omark------would someone pls tell me the difference between the two. Or any advice on what I can do...change triggers or is there something I can do to the existing unit.

This in advance.

Paul

Quick · Post by **Quick** » Sun May 20, 2012 10:15 am

Paul,

As I understand it, the Std Omark trigger is an old style R700 trigger. You should be able to have it adjusted by a gunsmith. Or replaced with another R700 trigger.

I will follow this thread with interest as I want to change out my omark trigger as well.

Shaun.

John E · Post by **John E** » Sun May 20, 2012 2:38 pm

Paul
contact Adam Davies --- he makes a excellent trigger for the Omark at a very reasonable price.

John

DannyS · Post by **DannyS** » Sun May 20, 2012 2:43 pm

Hi Guys, contact Barry & Adam Davies, they produce an excellent trigger, that is very reasonably priced and easy to fit.

The target rifle version is a two stage trigger and the F class is a single stage.

I replaced my omark trigger with the two stage version, the difference is amazing.

Barry Davies · Post by **Barry Davies** » Sun May 20, 2012 4:30 pm

Appreciate the good words John and Danny. Yes Paul we can help you with either a Two Stage or single stage.
The F Class version is the TR model slightly modified to be less than 1/2 kg. and is available in two stage only.
The Rem 700 is not interchangeable with an Omark -- close, but not close enough.
Barry

Tman · Post by **Tman** » Sun May 20, 2012 4:55 pm

The Omark trigger can be changed for a Davies, but the sear is different.
Instructions are provided that detail how it needs to be changed.

Quick · Post by **Quick** » Sun May 20, 2012 7:01 pm

Cheers Barry, I learn something new everyday

Gtown · Post by **Gtown** » Sun May 20, 2012 7:46 pm

Well .... decision made.....this everyone, looks like a call is in order, new trigger coming up!!!.......

Next question....can I fit it myself, or should I have a gunsmith do it??

At least my winch will be happy......9000lb pulling power and have burnt out 3 motors in one day trying to pull that trigger!!!!!

Thhks everyone

Tman · Post by **Tman** » Sun May 20, 2012 9:30 pm

If you are handy with tools you should be able to do it yourself.
As previously mentioned, the sear on an omark bolt is, if my memory serves me correctly, at an angle. The sear engagement on the Omark bolt needs to be changed so that it is more of a sharp edge, more like a right angle as compared its previous shape of a triangle.

An Angel 80 bolt looks similar to an Omark bolt, except that the sear on the bottom of the Angel is what the Omark should look like, with that sharp edge. That sharp edge you see is the sear

If you have a work bench with a vice, you should be able to fit the bolt into the vice, and where the ramp part of the sear meets the flat part on the top, this is the point that needs to be made into a sharp edge. What you need to do is to remove that trianglel of metal, and form a right angle.

Don't get too enthusiastic with your tools, this needs to be done slowly, as if you remove too much metal, there is no turning back. The point of the sear edge is critical, it needs to be sharp and square in all directions, as this is what engages with the sear in the trigger. If it is not square and in the right spot you will have trigger issues.

See the link to the image of the Angel 80 bolt and see the sear on the left hand end, that sharp edge shown in the picture. Go to http://upload.wikimedia.org/wikipedia/c ... embled.jpg

To remove the Omark trigger, you need to drive the pins out and the Davies trigger will fit straight in, but you will need to do your work on the sear of the bolt first.

Once your trigger is fitted you should then, by trial and adjustment, adjust the trigger so that it releases crisply. The trick to this is not to have over-engagement because the trigger will not release the bolt and if there is under-engagement, the bolt will not engage at all.

Davies triggers come with instructions, and if you are half capable with tools you should be able to do this.

I changed my Omark trigger quite a number of years ago and not had any problems. Don't forget about trigger release requirements, especially with regard to prize meetings where they do spot checks with a trigger test.

Tman · Post by **Tman** » Sun May 20, 2012 9:39 pm

I apologise for the link to my previous post, have a look at this link on Wiki to Angel Rifles and scroll down to the pictures, looking for the disassembled bolt, at the following link http://en.wikipedia.org/wiki/Angel_Rifles

Cheers Ben

DannyS · Post by **DannyS** » Mon May 21, 2012 7:19 am

Not all omarks need the sear changed, it mainly applies to the older ones. Mine was at the correct angle and didn't need any work.

Tman · Post by **Tman** » Mon May 21, 2012 4:27 pm

Thanks for that, my Omark must be the older version, even though it was in the stock without the timber over the top, as compared to the one with the timber over the top that sort of looks like a 303. It also has a 3 piece laminated stock, 55-60mm wide.

Gtown · Post by **Gtown** » Mon May 21, 2012 6:07 pm

Thks again everyone.....very helpful.

And, a very big thank you to Adam Davies. I phoned him this morning and he took 20 minutes out of what I am sure is a busy day, considering that it was a Monday as well.

Adam took the time to talk to me about the ins and outs of triggers and explained the foibles of single and two stage triggers and what would suit me best.

As mentioned above, great customer service and was able to explain things in a way that I could understand, resulting in an order for a two stage trigger for the old girl.

now, if I can only shoot as straight as the rifle all will be good!!...maybe I might be able to sell a winch as well!!

thks again.

Paul

DannyS · Post by **DannyS** » Mon May 21, 2012 6:37 pm

I could be interested in the winch, we have quite a few members that don't like shooting distances longer than 300 yards. :lol:

PS. knew Adam would look after you

Gtown · Post by **Gtown** » Wed Jun 06, 2012 7:23 pm

So----you all know the story to date.......I ordered a 2 stage trigger from Adam, arrives in the mail Monday, straight into the workshop, strip the old girl down, old trigger out - 1 minute, modify the stock - 2 minutes, fit new trigger - 1 minute, adjust weight and draw - 1 minute, 15 seconds to grab beer, open take a drink, study my handiwork, put it all back in the stock.......to easy, everything fitted as described by Adam. Couldn't have been any easier.

So....thks everyone for advice and discussion..........BIG thank you to Adam.

Anyone thinking of a new trigger.....PHONE ADAM.........you will not go wrong!!!!!