It's my understanding that the primary knock on Sako type extractors is the potential for an over-pressure situation to make a projectile out of the extractor. Last year, when Kelbly's switched all their bolts from the sliding gate type extractor they previously used to the new Sako type system, they spent a good deal of time and testing making sure their design was trapped in the bolt by the action body and thus could not be ejected in an overpressure situation. They did some destructive testing to this end.
Yeah me to oh wait don’t care anymore switched to a terminus only went through a dozen bolt stops before
Ryan, what exactly was changed with the new anti-shear design?
The Sako that we use is a lot bulkier than a standard Sako, they are designed beefier to resist fragmentation. In all of our pressure testing we have yet to have one fragment or come out of the bolt. On a typical Sako there is very little material between the body of the extractor and the circular hook that holds it into the bolt, whereas ours is very thick in that area. I think a lot of people are confused between a Sako and an M16 style extractor. The way the Sako fits in our bolt, there is no way for gas that comes out of the primer in a catastrophic failure to get behind or underneath the Sako. Whereas an M16 extractor has to be cut into the firing pin channel making it susceptible to catching high pressure gas and becoming shrapnel in the same scenario.
The anti-shear bolt stop is made with a longer bolt stop screw hole which allows the bolt stop to slide back and impact the action body instead of the bolt stop screw. We also added material on the back side to reinforce the new impact area. In all of our testing this setup has not failed.
We will begin delivery in January of 2022
Lol first message since 2019? What's your real account?
Considering his account is his name. And I know him. And have seen what he's describing.
Was this the first bolt stop or the HD one that screws in?
When we launched our Arcas series rifles almost ten years ago was the first time we used a Greek name. Atlas and NYX are also Greek names. Prometheus is the brother of Atlas, so it was only fitting that we used Prometheus.
The bolt handles and bolts are exactly the same. All of our bolts are the same and are interchangeable. We wanted to make it as easy as possible for our customers. You can also use Atlas barrels on the Prometheus or Nanook.
The bolt handle length is the only thing that bothered me on the Atlas. It made the lift incredibly easy but I personally would have wanted an option for a shorter handle.
We have three options for handles now. A tactical which is 2.5", a teardrop which is 2.5", and a ball which is 2". So we have you covered if you want a shorter handle!
The knob at the end is just shorter. The rod is the same length, so you can still get your fingers between the stock and the bolt handle.
The bolt is identical to an Atlas or any other Kelbly action. It has a 24# spring for ultimate accuracy and ignition.
I know, we finally decided to catch up to the 700 Footprint integral party! This action would be great for the Hunter series. The action will work great with the AICS magazines, you will not be able to run the double stack magazines but you will have no issues running the single stack mags. out of the ADL/BDL magazine cutout!
Yes, the .338 will only come with a 35 MOA Mil-Spec Picatinny Rail on it!
No, the Prometheus will only be available in AICS/AW magazine cutout and the Nanook will only be available with the ADL/BDL magazine cut out, which will still work with single stack magazines as well.
Quoting and tagging for interest…. Also looking at a 300NM build with CIP mag length.Have already preordered one for 300nm/338 build. Will it work with aics ax chassis and 3850 cip single stack mag?
Anyone with one on order that wants to get rid of it? What do you want to see?
How the bolt release sits next to the stock, bolt wear, clearance between bolt knob and scope... you know just the general action pictures
It should it has the rem 700 footprint. Mine fits in all my chassis and a McMillan.
Damn, I’m between this and a lone peak.
