American Rifle Company, $795 Nucleus Gen 1.1 and Gen 2.0 Bolt Actions

[karagias]

Scroll down to read about the $795 Nucleus Gen 1.1
Customers with pending orders can choose from either the $795 Gen 1.1 or the $1000 Gen 2.0

American Rifle Company
Nucleus® Gen 2.0​

American Rifle Company is proud to introduce the Nucleus Gen 2.0 bolt action.

We decided to update the Nucleus for two reasons. First, and perhaps most importantly, is reducing the elapsed time between order placement and fulfillment. To that end, an effort to improve production throughput was made by reducing the number of unique parts that we must manufacture. For example, the entire striker assembly of Nucleus G2.0 is now identical to that of the Mausingfield while its bolt head and the extractor are now identical to those of the Archimedes. And secondly, we want to give you more of what you want so Nucleus G2.0 has been updated with the following:

Keyed rail interface
For scope mounting, Nucleus G2.0 uses a Picatinny rail that now has a tapered slot that engages a similarly tapered key machined into the top of the receiver, just like those of the Archimedes. So, in addition to the five conical head screws that were used on the original Nucleus, the key provides an additional constraint for maintaining alignment between the rail and the receiver and for resisting the forces imparted on the rail by the recoil lug during barrel installation.

Bayonet style bolt shroud
The striker assembly of Nucleus G2.0 can now be removed by depressing the bolt shroud locking pin and then rotating the bolt shroud with respect to the bolt by one-quarter of a revolution, enabling tool-less take-down of the bolt for cleaning and for bolt-head exchange.

80 degrees of bolt rotation
In order to improve the smoothness of the bolt cycle, maintain an appropriate level of cocking effort, and still provide adequate clearance between the shooter’s hand and the scope during bolt cycling, Nucleus G2.0 has 80 degrees of bolt rotation. The original Nucleus had 72 degrees.

Smoother cocking and closing
Nucleus G2.0 slightly over-cocks when lifting the bolt handle and then de-cocks by a tiny bit when closing the bolt, thus no cock-on-close will be the standard offering. Moreover, the cocking piece never falls into the cocking cams when closing the bolt thus eliminating any bump-on-close that would otherwise result from a slight amount of re-cocking. The cocking behavior of Nucleus G2.0 is now essentially identical to that of our current Mausingfield action.

Optional cocking pieces
To accommodate variations among triggers that will be used within Nucleus G2.0, we now have an inventory of cocking pieces varying by 0.25mm (0.010 inches). Additionally, those wishing to enable their action to cock-on-close can do so by ordering a cocking piece that will provide that functionality. Cock-on-close cocking pieces can also be modified by a competent gunsmith in order to eliminate any de-cocking and cocking-on-close.

The smartest bolt knob in the industry
Nucleus G2.0 comes standard with our short barbell knob which we believe is the smartest and most ergonomic bolt knob available. The knob boasts a function driven design that makes high-speed cycling of the bolt as easy as possible.

Improved fully-retracted bolt guidance
The receiver of Nucleus G2.0 cradles more of the bolt body than did its predecessor, thus making it a bit easier to avoid binding while cycling a bolt that was already easy to cycle. An incremental improvement at best, is was easy to implement and therefore we included it.

During the past few years, we have struggled to deliver actions in a timely fashion. Afterall, coaxing a bolt action out of a hardened steel bar is not easily done. We often underestimated just how difficult it is to do this stuff. So rather than introduce something completely new like we did last year, American Rifle Company’s goal for 2020 is to significantly reduce the time it takes to put our products in your hands by getting better at what we do. Nucleus G2.0 is a big step in that direction and we will begin taking orders and deposits for these soon.

And as always, thank you for your business. It's the fuel that keeps us going and we don’t forget that.

***



American Rifle Company
Nucleus® Gen 1.1
Only $795 while supplies last!
In stock and available now for immediate delivery!
​

So, what is a Nucleus Gen 1.1 and why is it on sale?

A Nucleus Gen1.1 is essentially a Nucleus Gen2.0 less the keyed rail interface and the extended support for a fully retracted bolt. Apart from that and the use of the Gen1 bolt head, the two are functionally identical.

During the development of Nucleus Gen2.0, we had to decide what to do with some existing Gen1 inventory of which we did not have enough to build complete Gen 1 actions. We decided to rework Gen1 receivers and fit them with bolts that are nearly identical to those of Gen2.0 yielding Gen1.1 actions having Gen2.0 functionality. Doing so presented us with the smoothest transition to Gen2.0 which we developed to apply lessons learned and to improve production throughput and availability of all of our actions. Gen1.1 fit nicely into this line of reasoning.

Nucleus Gen1.1 upgrades include the following:

Bayonet style bolt shroud
The striker assembly of Nucleus G1.1 can now be removed by depressing the bolt shroud locking pin and then rotating the bolt shroud with respect to the bolt by one-quarter of a revolution, enabling tool-less take-down of the bolt for cleaning and for bolt-head exchange.

80 degrees of bolt rotation
In order to improve the smoothness of the bolt cycle, maintain an appropriate level of cocking effort, and still provide adequate clearance between the shooter’s hand and the scope during bolt cycling, Nucleus G1.1 has 80 degrees of bolt rotation. The original Nucleus had 72 degrees.

Smoother cocking and closing
Nucleus G1.1 short-action slightly over-cocks when lifting the bolt handle and then de-cocks by a tiny bit when closing the bolt, thus no cock-on-close will be the standard offering. Moreover, the cocking piece never falls into the cocking cams when closing the bolt thus eliminating any bump-on-close that would otherwise result from a slight amount of re-cocking. The cocking behavior of Nucleus G1.1 is now essentially identical to that of our current Mausingfield action. Note that the Nucleus Gen1.1 long-action may exhibit a slight bump-on-close that is much less perceptible than that of the original Gen1 Nucleus. If you are hypersensitive to the sort of thing, we suggest choosing a Nucleus Gen2.0 long action.

Optional cocking pieces
To accommodate variations among triggers that would otherwise change the way the bolt cycle feels to the user, we now have an inventory of cocking pieces varying by 0.25mm (0.010 inches) for the Nucleus G1.1. Additionally, those wishing to enable their action to cock-on-close can do so by ordering a cocking piece that will provide that functionality. Cock-on-close cocking pieces can also be modified by a competent gunsmith in order to eliminate any de-cocking and cocking-on-close.

The smartest bolt knob in the industry
Nucleus G1.1 comes standard with our short barbell knob which we believe is the smartest and most ergonomic bolt knob available. The knob boasts a function driven design that makes high-speed cycling of the bolt as easy as possible.

Currently available are about 133 Nucleus Gen1.1 right-handed actions of which 97 are short-actions and 36 are long-actions. These actions are fully assembled and ready for immediate shipping once we receive payment and your FFL details.
So come and get’em! We want to clean our slate so that we can usher in the era of Nucleus Gen2.0 sooner than later.

And as always, thank you for your business. It's the fuel that keeps us going and we don’t forget that.

And again, customers with pending orders can choose from either the $795 Gen 1.1 or the $1000 Gen 2.0

​

 

[karagias]

Here is a rendering of Nucleus Gen1.1. It looks just like Gen1.0 apart from the bolt knob that we currently ship as our standard.

Ted

 

[Kiba]

Ted, congratulations on the updated and improved Nucleus 2.0... that's quite a few improvements even though the price stays the same.

But talk about bad timing for me... I upgraded my Nucleus to an Archimedes this week and listed my Nucleus in the PX just 10 minutes ago. Guess I have to edit the ad and drop the price now... unless you want to put the price on your website back to $1000 until I sell mine, LOL!

Nice to see the different length cocking pieces available for the Nucleus now as well. The availability of multiple length cocking pieces sure made timing the trigger on my Archimedes easy-- much easier than grinding a cocking piece for my Nucleus.

Really liked my Nucleus, and the 2.0 version looks to be even better. My new Archimedes is stupid smooth... really nice feeling action. Going to pick up a second one in long action in the near future.

Keep up the good work!

 

[SD Carpenter]

The fact you have 133 in stock is insane!!

 

[Steel head]

Nice.
love my old nucleus.
looking forward to trying the new version.

 

[Winny94]

I'm looking at a new bolt head for my gen 1 - will those continue to be available?

 

[karagias]

I'm looking at a new bolt head for my gen 1 - will those continue to be available?

There's only a slight difference between a Gen1 bolt head and the Gen2 bolt head. We will continue to support Gen1 so long as we are producing any Nucleus action. If we run out of Gen1 bolt heads, we can modify existing Gen2s in order to make more.

Ted

 

[karagias]

Ted, congratulations on the updated and improved Nucleus 2.0... that's quite a few improvements even though the price stays the same.

But talk about bad timing for me... I upgraded my Nucleus to an Archimedes this week and listed my Nucleus in the PX just 10 minutes ago. Guess I have to edit the ad and drop the price now... unless you want to put the price on your website back to $1000 until I sell mine, LOL!

Nice to see the different length cocking pieces available for the Nucleus now as well. The availability of multiple length cocking pieces sure made timing the trigger on my Archimedes easy-- much easier than grinding a cocking piece for my Nucleus.

Really liked my Nucleus, and the 2.0 version looks to be even better. My new Archimedes is stupid smooth... really nice feeling action. Going to pick up a second one in long action in the near future.

Keep up the good work!

Thanks for all that.

I really wish I knew why some of you guys cared about trigger timing so much. The big manufactures don't worry about that in factory guns. They smartly opt for increasing ignition reliability and leave it to crazy people like us to try to thread the needle between smooth bolt closing and reliable ignition. I recently had a chat with Mark from Short Action Customs. He used to encourage me to make actions with smooth bolt closing but now he favors a harder thwack of the striker against the primer. And in that spirit, we made cocking piece with 0.060" of cock on close, just like a factory gun. If I use one of these actions on a hunt, as I recently did in Montana to harvested a little mule deer doe, you can bet it will cock on close.

But, your heart wants what it wants, and we aim to please.

Ted

 

[Winny94]

There's only a slight difference between a Gen1 bolt head and the Gen2 bolt head. We will continue to support Gen1 so long as we are producing any Nucleus action. If we run out of Gen1 bolt heads, we can modify existing Gen2s in order to make more.

Ted

Thanks for the response. How can we identify if it's a g1 vs g2? I have a Brownells gift card and was planning on getting it there. It's listed on their site as fitting both the Archimedes and Nucleus, but I know they had them in stock before this announcement.

Thanks !

 

[spife7980]

@karagias And it maintains the same tenon specs so that a previously cut nucleus barrel will work in the new gen 1.1 and 2? I’m almost certain it would remain the same but just want to be 100%

 

[Kiba]

Thanks for all that.

I really wish I knew why some of you guys cared about trigger timing so much. The big manufactures don't worry about that in factory guns. They smartly opt for increasing ignition reliability and leave it to crazy people like us to try to thread the needle between smooth bolt closing and reliable ignition. I recently had a chat with Mark from Short Action Customs. He used to encourage me to make actions with smooth bolt closing but now he favors a harder thwack of the striker against the primer. And in that spirit, we made cocking piece with 0.060" of cock on close, just like a factory gun. If I use one of these actions on a hunt, as I recently did in Montana to harvested a little mule deer doe, you can bet it will cock on close.

But, your heart wants what it wants, and we aim to please.

Ted

Ted, striker energy and reliable ignition is far more important to me than bolt feel... But if you can have both plenty of striker energy *and* a smooth hitch free bolt opening and closing that's even better! That's part of the reason I upgraded to the Archimedes and am happy to see the improvements in the nucleus 2.0.

My nucleus 1.0 with a 19# striker spring and an unmodified cocking piece initially had 0.026" of overcocking on close and a pretty decent "hitch" when closing the bolt when running it slowly. It felt good running it normally though. Later I ordered another cocking piece and ground it for 0.005" of overcocking on close; it still had 0.255" of striker travel. It felt pretty smooth when running the bolt normally but if you ran it slowly it has a couple little "bumps" when closing, although it was far smoother than with 0.026" of overcocking.

The new Archimedes with the 30# striker spring and a 780/035 cocking piece has 0.004" decocking on close and still has 0.252" of striker travel. The operation of the bolt opening and closing is fingertip light and totally smooth even running the bolt slowly. It's fantastic feeling. I know a big part of that is the Archimedes design having the entire bolt rotation dedicated to only cocking the striker since there is no extraction camming in the bolt rotation. And with the nearly identical 0.252" of firing pin travel compared to my Nucleus but with a 30# striker spring it delivers more energy to the primer than my Nucleus did.

i really liked my nucleus but the Archimedes takes it to the next level, and it sounds like the nucleus 2.0 will have improved bolt feel without sacrificing (and possibly even improving) striker energy over the nucleus 1.0 design.

Looking forward to spending some time behind a Nucleus 2.0 in the future. I really liked my Nucleus 1.0 and it sounds like the 2.0 will function and feel smoother.

@karagias And it maintains the same tenon specs so that a previously cut nucleus barrel will work in the new gen 1.1 and 2? I’m almost certain it would remain the same but just want to be 100%

Ted can confirm, but ARC's interface drawing is showing the same 0.825 +/- 0.002" for the M3, M5, M7, and M9 (Nucleus 1.0/1.1/2.0, Archimedes, and latest 2 revisions of the Mausingfield) so you should be able to move the barrel over to another receiver and still have it headspace correctly.

However, depending on tolerance stacking of your barrel tenon, chamber, and the receiver, your existing brass may either require a slight shoulder bump or will grow slightly when firing compared to your current receiver if you swap barrels. For example, when I ordered my Archimedes I asked ARC to try and match the headspace of my existing Nucleus; the Nucleus measured at 0.8245" with a depth mic and the Archimedes they sent me measured 0.8240", so the new Archimedes was within 0.0005" of my Nucleus which is great. However, I should have thought ahead and realized since I already had some ammo loaded and a few hundred cases FL sized and ready to load I should have asked them (if possible) to have the new Archimedes measure out at 0.8245" +0.001 / -0. Reason being is that while the depth mic said the new Archimedes was only 0.0005" tighter than my Nucleus for headspace, the brass that was already FL sized for the same barrel in the Nucleus exhibited a very slight drag on the bolt handle of the Archimedes when closing it. I'm going to shoot the last 70 rounds I have loaded and for future batches will drop the FL sizing die 0.001" and be good to go.

 

[EnjoyTheWilderness]

Ted, I am one of those with a pending order. Thanks for providing me with options. I replied back via email to opt for the Gen 2 (enhancements look nice). Do you have rough estimates regarding Gen 2 availability? I assume pending orders get priority?

 

[karagias]

Ted, striker energy and reliable ignition is far more important to me than bolt feel... But if you can have both plenty of striker energy *and* a smooth hitch free bolt opening and closing that's even better! That's part of the reason I upgraded to the Archimedes and am happy to see the improvements in the nucleus 2.0.

My nucleus 1.0 with a 19# striker spring and an unmodified cocking piece initially had 0.026" of overcocking on close and a pretty decent "hitch" when closing the bolt when running it slowly. It felt good running it normally though. Later I ordered another cocking piece and ground it for 0.005" of overcocking on close; it still had 0.255" of striker travel. It felt pretty smooth when running the bolt normally but if you ran it slowly it has a couple little "bumps" when closing, although it was far smoother than with 0.026" of overcocking.

The new Archimedes with the 30# striker spring and a 780/035 cocking piece has 0.004" decocking on close and still has 0.252" of striker travel. The operation of the bolt opening and closing is fingertip light and totally smooth even running the bolt slowly. It's fantastic feeling. I know a big part of that is the Archimedes design having the entire bolt rotation dedicated to only cocking the striker since there is no extraction camming in the bolt rotation. And with the nearly identical 0.252" of firing pin travel compared to my Nucleus but with a 30# striker spring it delivers more energy to the primer than my Nucleus did.

i really liked my nucleus but the Archimedes takes it to the next level, and it sounds like the nucleus 2.0 will have improved bolt feel without sacrificing (and possibly even improving) striker energy over the nucleus 1.0 design.

Looking forward to spending some time behind a Nucleus 2.0 in the future. I really liked my Nucleus 1.0 and it sounds like the 2.0 will function and feel smoother.



Ted can confirm, but ARC's interface drawing is showing the same 0.825 +/- 0.002" for the M3, M5, M7, and M9 (Nucleus 1.0/1.1/2.0, Archimedes, and latest 2 revisions of the Mausingfield) so you should be able to move the barrel over to another receiver and still have it headspace correctly.

However, depending on tolerance stacking of your barrel tenon, chamber, and the receiver, your existing brass may either require a slight shoulder bump or will grow slightly when firing compared to your current receiver if you swap barrels. For example, when I ordered my Archimedes I asked ARC to try and match the headspace of my existing Nucleus; the Nucleus measured at 0.8245" with a depth mic and the Archimedes they sent me measured 0.8240", so the new Archimedes was within 0.0005" of my Nucleus which is great. However, I should have thought ahead and realized since I already had some ammo loaded and a few hundred cases FL sized and ready to load I should have asked them (if possible) to have the new Archimedes measure out at 0.8245" +0.001 / -0. Reason being is that while the depth mic said the new Archimedes was only 0.0005" tighter than my Nucleus for headspace, the brass that was already FL sized for the same barrel in the Nucleus exhibited a very slight drag on the bolt handle of the Archimedes when closing it. I'm going to shoot the last 70 rounds I have loaded and for future batches will drop the FL sizing die 0.001" and be good to go.

Kiba,

Your understanding and easily read prose is not just energizing but also makes you a great ambassador for the shooting community. Again, thanks is in order.

To your first point, you can have both bump-free close and reliable ignition but such design reduces the margin of error associated with ignition. What you choose should depend on your circumstances. If lots of money or life is on the line, choose ignition. Now one can depart from the Rem700 footprint and improve upon smoothness and ignition by increasing the diameter of the bolt body. However, doing so compromises other aspects of the design such as functionally stripping cartridges from the mag. I've considered designs in which only the diameter at aft end of the bolt is enlarged, but again, those required departing from the R700 envelop to escape the constraints imposed by it.

Do you have the latest revision of the Gen1 bolt head? We offered to swap bolt heads at the customers discretion.

To your comments regarding the Archimedes, no actions were shipped with 30 pound springs. I know that the assembly drawing supplied with the action indicated as much but that was an error that has since been corrected. I think the Archimedes ships with a 25 pound spring, maybe a 22. I'm not sure.

Also, only the prototype Archimedes actions we made without closing cams. Closing cams are at the front of a receiver and enable the bolt to forcefully spiral forward to aid in snapping the extractor over the rim of the case and to force a cartridge into a chamber that may be a bit tight for it. Your action, like all production Archimedes actions, does have closing cams that necessarily increased the pitch (steepness) of the cocking cam in order to maintain the bolt-cycle behavior that we deemed desirable. We could have made them without closing cams but we had concerns about feedback that we would certainly get as people experienced resistance when trying to close the bolt without the aid of some forward momentum. Our experience with the customer's sensitivity to the way the bolt feels when closing strongly influenced our decision. Now, having said all that, a cam-less Archimedes receiver is certainly a valid solution provided the ammo is sized correctly for the chamber and the shooter habitually completes the bolt-cycle the aid some forward momentum.

And finally, to you point regrading headspace, yes we maintain 0.825 +/-.002 across all platforms.

Ted

 

[karagias]

Ted, I am one of those with a pending order. Thanks for providing me with options. I replied back via email to opt for the Gen 2 (enhancements look nice). Do you have rough estimates regarding Gen 2 availability? I assume pending orders get priority?

Yes, pending orders get priority.

I'm no longer allowed to quote rough estimates because I suck doing so. For example, we have yet to ship a single Xylo Chassis. Justin can give a better estimate than I can. He has good viability of what's moving through the shop.

Ted

 

[Kiba]

Thanks for the clarification Ted. I did pull the 30# striker spring weight for the Archimedes directly off the exploded parts diagram that came with the action.

Even if it's 25# or 22#, it's been 100% reliable and cycles extremely smoothly.

I also agree that if you want maximum ignition reliability and maximum energy imparted to the primer you should install the longest 780/065 cocking piece (for the Archimedes anyways, not sure of the numbering scheme for the nucleus 2.0 yet) which would provide the maximum amount of firing pin travel and spring compression to impart the most energy to the primer-- even though that longer cocking piece may add some cock on closing and a slight "bump" to the feel during bolt closing. As you said, every design choice has a trade-off.

What's greatly appreciated is you making the different length cocking pieces available so the end user can decide exactly what they want in their action and trigger combination and change it in 5 minutes without having to do any grinding or hand fitting. Of course, the hand fitting option is still available.

 

[BoilerUP]

Will a shouldered prefit barrel made for a Nucleus 1.0 work with 1.1 or 2.0?

 

[karagias]

Will a shouldered prefit barrel made for a Nucleus 1.0 work with 1.1 or 2.0?

Yes it will.

Ted

 

[Kiba]

Refer back to my post #11 and Ted's reply #13, or Ted's reply #17 for the short version.

Ted confirmed the 0.825 +/- 0.002 receiver face to bolt face dimension and thread specs are the same between the nucleus gen 1.0/1.1/2.0, so the barrel will physically fit, but based on tolerance stacking of your barrel tenon, chamber, and receiver it may work as is or you may need to size your brass a little more. I had to bump some previously FL sized brass back an additional 0.001" when I moved the barrel from my nucleus to my Archimedes as the headspace was a little tighter and there was a slight drag on the bolt when closing.

 

[Winny94]

There's only a slight difference between a Gen1 bolt head and the Gen2 bolt head. We will continue to support Gen1 so long as we are producing any Nucleus action. If we run out of Gen1 bolt heads, we can modify existing Gen2s in order to make more.

Ted

Is there a way to visually differentiate gen 1 vs gen 2? I'm going to buy a new bolt head from Brownells and want to make sure it'll be a gen 1

 

[BLKWLFK9]

Well there goes the $ value of any original Nucleus' if someone wanted to sell theirs. I dont have plans of ever selling my serial number 0002 JHR but this further discourages any thought of doing so. I thought the original Nuke wasn't a bayonet style for safety reasons? Now it is?

 

[kRcu]

Guys bitching over a $200 temporary discount offered while ARC sells the last of the stocked “old” Nucleus......sad.

 

[karagias]

Well there goes the $ value of any original Nucleus' if someone wanted to sell theirs. I dont have plans of ever selling my serial number 0002 JHR but this further discourages any thought of doing so. I thought the original Nuke wasn't a bayonet style for safety reasons? Now it is?

After destructively testing actions, we find brass practically welded to the gas shield of the bolt shroud. During such extremely severe over-pressure events, forces working to eject the shroud from the bolt body are difficult to quantify but can be estimated with some assumptions. When I originally designed the Nucleus, I choose to use the thread instead of the bayonet lugs for a couple of reasons. First, I considered them safe, and secondly, I underestimated the markets desire for the quick removal that the bayonet lugs offered. So when it came time to revise the Mausingfield design, I took a close look at the interface between the shroud and the bolt and determined that I could safely incorporate a bayonet lug design. But, that does NOT mean that I think that actions having similar shroud to bolt interfaces are also safe. I have serious doubts about some.

The shroud lugs of our actions are the largest that I am aware of. I have also incorporated two large lugs while other manufacturers use only a single smaller lug. And lastly, both the should and the bolt body are made from hardened steel. I think we're good.

To your point regarding the value of your John Hancock, you seem to imply that you purchased the rifle as an investment. Modern guns are generally bad investments because more are constantly being produced and designs are updated to keep up with market trends. In fact, manufacturers have an incentive to constantly upgrade an innovate. If they didn't, they would have to complete against themselves. Apple is faced with this dilemma. And know this. If I could design a rifle that would make all others obsolete and undesirable and worthless, I would, and without hesitation.

And here is yet another way to think about the value of guns. When you bought your john Hancock, you chose to exchange US dollars for a durable good. Should the value of those dollars diminish to near zero, that value of your John Hancock rifle will almost certainly increase. And I offer this only partially in jest. Should the communist barbarians led by the evil and anti-freedom Bernie Sanders gain power, the subsequent coercion will certainly cripple the economy of our fragile civilization.

So if you're interested in investment grade guns, take a look at Rock Island Auction or vote for Bernie. But in all seriousness, choose Rock Island. Don't vote for Bernie.

Ted

 

[357Max]

To bad there are no 1.1 RH SA with .535 bolt heads in stock. I would buy it right now.

@karagias - Any chance you'd be willing to swap a .535 bolt head from one of the 1.1 long actions to a SA for me?

 

[slkzic]

Ordered up a Nucleus 1.1 LA Magnum BF for a 300 PRC build. Also ordered the BarLoc with barrel nut for a Proof CF Savage Prefit that I have on order. Any idea if I would be able to drop it into a MPA Chassis or would the Barloc prevent this? Thanks

 

[karagias]

To bad there are no 1.1 RH SA with .535 bolt heads in stock. I would buy it right now.

@karagias - Any chance you'd be willing to swap a .535 bolt head from one of the 1.1 long actions to a SA for me?

I think we can make that happen. Call us tomorrow and ask for Justin. I'll see if I can get a hold of him a bit later.

 

[karagias]

Ordered up a Nucleus 1.1 LA Magnum BF for a 300 PRC build. Also ordered the BarLoc with barrel nut for a Proof CF Savage Prefit that I have on order. Any idea if I would be able to drop it into a MPA Chassis or would the Barloc prevent this? Thanks

If you use a Barloc, make sure to use it with a barrel nut so that you have a fall back position in case you're not satisfied with its performance. I never liked the idea of complicating the barrel-receiver joint for the convenience of barrel exchange. We do have customers that use them and love them but I am not one of them. That said, they will fit in an MPA chassis.

Ted

 

[slkzic]

If you use a Barloc, make sure to use it with a barrel nut so that you have a fall back position in case you're not satisfied with its performance. I never liked the idea of complicating the barrel-receiver joint for the convenience of barrel exchange. We do have customers that use them and love them but I am not one of them. That said, they will fit in an MPA chassis.

Ted

So if I’m not looking to be able to barrel swap in the field with minimal tools would something like the Bighorn 12 point barrel nut maybe be a better option?

 

[2aBaC̶a̶]

Rh Long actions sold out? Would like one.

 

[Dolomite_Supafly]

If you had mentioned this last week you could have kept my money for another Nucleus action instead of refunding my money on the Archimedes. I would have gladly swapped the Archimedes for another Nucleus, especially if I had known what was coming.

 

[Dolomite_Supafly]

Is it possible to upgrade a 1.0 to a 1.1?

 

[Dooby]

Wait, so the original Nucleus is being phased out totally? Bummer. What if we need spare parts? Will the original Nucleus' be supported?

 

[gnochi]

So if I’m not looking to be able to barrel swap in the field with minimal tools would something like the Bighorn 12 point barrel nut maybe be a better option?

I find the BARLOC a great option for me personally because it’s much easier to deal with in my apartment. I’m also less likely to gouge my barrel if a tool slips, etc.

I haven’t noticed any zero shift from barrel whacks on my Proof savage prefit, including a hunting trip and accidentally knocking my rifle off a bench with it landing on the muzzle and scope.

 

[j741]

Rh Long actions sold out? Would like one.

There are RH LA in stock.

Long Right, 473, 20 MOA
Long Right, 535, 20 MOA
Long Right, 535, 30 MOA
Short Right, 378, 20 MOA
Short Right, 473, 20 MOA

 

[2aBaC̶a̶]

There are RH LA in stock.

Long Right, 473, 20 MOA
Long Right, 535, 20 MOA
Long Right, 535, 30 MOA
Short Right, 378, 20 MOA
Short Right, 473, 20 MOA

Ah, found it. Had to play with the combinations thanks.

 

[karagias]

We can still mix and match rails and bolt heads. The website is kind of screwy. Justin set it up not knowing what people would prefer. If you want and action, just place the order. No lefts. We can edit the order later, I think. If not, Justin will be angry with me but you'll get what you want.
Ted

 

[Skunkworx]

Ted, are you guys going to incorporate anything to help us guys who shoot the small 6br size cases from being flung forward when ejecting cases?

 

[357Max]

I think we can make that happen. Call us tomorrow and ask for Justin. I'll see if I can get a hold of him a bit later.

Thanks Ted.
I will place the order and call Justin Tomorrow. I'll put the request in the notes for order if that is possible.

Ted,
I have one question I'd like you to clarify. I also have an Archimedes; will the Nuk 2.0 bolt heads interchange with Archimedes going forward? If so what about Nuk 1.1?
I'm under the impresion the 1.1 would not, but the 2.0 may interchange.

 

[357Max]

@karagias I placed the order for the .473 bolt head SA RH Nuk 1.1.
Edit - Added a note to email sent with FFL.
The order # ends in 51. Please let Justin know not to ship it with the .473 bolt head and thanks again.

I will call Justin tomorrow to ask to switch to the .535 bolt head.

 

[2aBaC̶a̶]

Just the sale I've been waiting for. I think American Rifle products are works of art.

One less LA, .535, 20moa on the shelf.

On another note does the long action take Savage small shank pre-fits? It doesnt differentiate short/long one the product description.

 

[karagias]

Just the sale I've been waiting for. I think American Rifle products are works of art.

One less LA, .535, 20moa on the shelf.

On another note does the long action take Savage small shank pre-fits? It doesnt differentiate short/long one the product description.

Thanks for the good word. All of our actions, with the exception of first twenty or so Mausingfield that we ever made, use the Savage small shank interface. I'm not sure why we call it that. The male thread (barrel) is properly referred to as 1.0625-20 UN 2A while the female counterpart within the receiver is 1.0625-20 UM 2B.

Ted

 

[karagias]

Thanks Ted.
I will place the order and call Justin Tomorrow. I'll put the request in the notes for order if that is possible.

Ted,
I have one question I'd like you to clarify. I also have an Archimedes; will the Nuk 2.0 bolt heads interchange with Archimedes going forward? If so what about Nuk 1.1?
I'm under the impresion the 1.1 would not, but the 2.0 may interchange.

Nucleus 2.0 and Archimedes use identical bolt heads.

Gen1 and Gen 1.1 Nucleus actions use identical bolt heads which are slightly different than those used within the Gen2.0 and the Archimedes.

The only difference between bolt heads are the locking lug chamfers that contact the forward closing cams of the receivers. The bolt head used in the Gen1 and Gen1.1 Nucleus will work in the Gen2 Nucleus and in the Archimedes but with a slight bump on close.

In most case due to part variation within dimensional tolerance, the bolt head used in the Gen2.0 Nucleus and in the Archimedes will make it very difficult to close the bolt if used in either the Gen1 or Gen1.1 Nucleus.

I hope that makes sense.

Ted

 

[karagias]

Ted, are you guys going to incorporate anything to help us guys who shoot the small 6br size cases from being flung forward when ejecting cases?

The Gen 1.1 and the Gen2.0 actions all have a large scallop cut into the receiver immediately behind the ejection port. The cut was made to prevent the cases from bouncing back into the ejection port which is of primary concern. Where the cases land with respect to the rifle is of secondary concern. That said, we haven't cut any Gen2.0 short action receivers yet. We started with longs and have close to 100 done. It's never an issue with longs because folks don't run Dashers and BRs in long actions. I could look into extending the ejection port of the short action further toward the aft end and see if the results in 3 o'clock ejection of Dasher brass. I'll look into it but can't promise anything until I do.

Thanks for the feedback. It's very helpful.

Ted

 

[Steel head]

The Gen 1.1 and the Gen2.0 actions all have a large scallop cut into the receiver immediately behind the ejection port. The cut was made to prevent the cases from bouncing back into the ejection port which is of primary concern. Where the cases land with respect to the rifle is of secondary concern. That said, we haven't cut any Gen2.0 short action receivers yet. We started with longs and have close to 100 done. It's never an issue with longs because folks don't run Dashers and BRs in long actions. I could look into extending the ejection port of the short action further toward the aft end and see if the results in 3 o'clock ejection of Dasher brass. I'll look into it but can't promise anything until I do.

Thanks for the feedback. It's very helpful.

Ted

hey Ted

Have you ever explored the idea of opening to forward part of the port a smidge to be able to eject my long 2.95ish oaded rounds in my short action nucleus?

 

[karagias]

Is it possible to upgrade a 1.0 to a 1.1?

Yes it is certainly possible but that doesn't mean we want to do it, not yet anyway. We need to determine how we would handle it. We are not setup to do custom low-volume work. The upgrade would require replacing the Gen 1 bolt body, bolt shroud, and cocking piece with those of Gen2.0 as well as reworking the extraction cam and maybe the forward cams of the receiver. We would likely charge at the very least $200 to do it unless we did it as a group buy in which case a bit of volume can reduce costs. We've discussed this internally in anticipation of the question. More feedback from you guys can make it happen.

Ted

 

[craigos]

awesome to have the builder on the forums and engaging the customers - so rare in any industry.

 

[azred33]

One less LA Mag available. Next stop a 300 PRC. Thanks Ted. Need a BARLOC too, but I will call to be sure I get the right set up.

 

[duramaxed]

1.1 sounds great! Tool less bolt upgrade is awesome. The one pain of version 1.

 

[karagias]

One less LA Mag available. Next stop a 300 PRC. Thanks Ted. Need a BARLOC too, but I will call to be sure I get the right set up.

I'm not a big fan of the Barloc because I personally don't think it is worth complicating the barrel-receiver connecting for convenient barrel exchange. But if you really want one, use it with barrel nut so that you have the option of running without it should you need or want to. Also, you may wish to buy a box of screws if you plan on frequently changing barrels. The screw used in the Barloc is highly stressed and should be replaced after just a few cycles and it's probably best to replace it after every cycle. Screws are available here:

https://www.mcmaster.com/91251a346

and, even better but more money, here:

https://www.mcmaster.com/92562a132

Ted

 

[EnjoyTheWilderness]

awesome to have the builder on the forums and engaging the customers - so rare in any industry.

I don't think a thumbs up from me is enough to voice my support for this level of engagement. So Kudo's to Ted/ARC! I am looking forward to my Nucleus 2.0. I also think it makes great sense to create as many common parts as possible especially given the info provided by Ted above that they are very similar to begin with.

 

[karagias]

Wait, so the original Nucleus is being phased out totally? Bummer. What if we need spare parts? Will the original Nucleus' be supported?

It will absolutely be supported. We have spare parts.

Ted