Ultimate 10/22 threaded receiver : Canadian breakthrough design

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This is a real revolution developed right here in Canada . It is a known solution applied for the first time to the 10/22. These concepts put together result in a design that is so thorough , so complete , so perfect , it simply brings the never ending debate on the 10/22 barrel-droop to a sudden stop.
It was developed by a guy most of you know as Dr Lector.
The following explanations and pictures are his , as he posted on another website, only copy and paste-ed here . He didn't post it in here because he didn't want it to be seen as an advertising , and , of course , because sometimes he is an ####### ( but you knew that already ) .


So, this is Dr Lector :




Hello Gents,



I will try to show you a 10/22 threaded receiver of a new, but simple concept.
Its first and only goal
was the highest possible rigidity of the barrel hold in the receiver I could come up with.



From the very beginning, I have to say that I did not give any consideration
to saving the "classic" look of the 10/22,
or to using unconventional solutions under a heavy disguise of a "stock" gun.

So, if you are looking for pics of a classy, or dixie, or posh, or 60's style 10/22 that has
some internal hidden tricks, then, this thread is not for you (I'm sorry to disappoint).
Instead, as I said, this receiver is designed and built with the only goal of
a strong and rigid hold of the barrel, with absolutely no regard to esthetics, style or fashion.





I have ever felt the rigidity of the assembly between barrel/receiver
can give better consistency.
In my way of thinking, there are two ways of achieving this rigidity:
1. The possibility of achieving any reasonable amount of torque
of the threaded assembly (generally, I tried to aim at torques
in excess of 38 ft.lbs. since, from my calculations, these would work),
2. Length of the thread in the receiver much longer than the tennon of the barrel in a factory 10/22.



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The barrel assembly:



The thread is 3/4" - 16 tpi (the receiver is made of aluminum,
and in my experience and others', 16 tpi is the optimum pitch)

The diameter of the barrel is .920", only for the purpose of trials using
a stock that already had a .920" barrel channel.

Some of the trials involved using the same assembly barrel/receiver in 2 separate ways:
1. with the barrel supported in a stock for .920" barrel, and
2. free floated barrel, by slightly opening the barrel channel in the stock.



TR_0061.jpg












For the ease of setting the right protrusion of the barrel inside the receiver using the said thread of 16 tpi,

I used a barrel with 2 extractor notches (that is like trying to find the sweet spot
of the protrusion while using a finer pitch of the thread - or 32 tpi thread)



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The diameter of the jam-nut is maximized up to the dimension of the width of the receiver for
the purpose of a large contact surface between receiver/jam-nut (washer).



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Additionally, I thought about the future possibility of using a recoil lug of the bolt action type
between the jam-nut and receiver.

This would probably eliminate the need of a washer, as the recoil lug could spread
the pressure over the surface of the receiver in a more uniform fashion.
I preferred the solution of a recoil lug in the front over the solution of thrusting the action in the stock at
the rear of the receiver, as the later would put tension the receiver.



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I am of the opinion that the recoil lug should be indexed - the one in the above pictures is not,
since I wanted to only illustrate the idea.
 
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The same Dr Lector:


The receiver:

The overall inside architecture of the receiver is not changed from the known types.
The prototypes in these pictures do not have a second hold-down lug at the rear,
but I am working on a removable type of a second hold-down
(this, however, has no direct relation with the idea of threaded barrel/ receiver).

The overall length of the threaded receiver is the same with the OEM receiver, BUT
in any case I would like the thread in the receiver to be as long as possible.



The front of the receiver is as solid as it can be.
While watching my very first prototypes, a friend questioned
the cuts under the front, that were inherited from the OEM receivers.
He pointed to me the fact that these cuts are useless.
A receiver without these undercuts in the front would be stronger, more solid.



Here are some pics with the two types, the one with undercuts and the solid one.



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The other parts:

The internals (bolt, spring/rod, trigger group, pins) are the same as the OEM and the known aftermarket.
The stock can easily be inletted (machined) to make room for the heavier front and the jam-nut.
In case of free-floating the barrel, a solid second hold-down is a MUST.
Unfortunately, I do not have pics of the stock inletting.





Additional info:

The barrels in the pictures are 18".
Receivers are made of Aluminum 6000 series.
The jam-nuts and washers are 4140 non treated.







(Well deserved) Credits:

The receivers in these pics were made in the machine shop of Dlask Arms Corp.
Josef Dlask is a professional gunsmith, machinist super master,
tool maker, and a fine designer with an extraordinary analytical sense.
He invested knowledge, expertise, efforts, time, and provided all
the necessary resources in completing the first physical prototypes.
Without him, this project would have remained just an idea in the back of my mind
for who knows how many more years.



Russ is a professional gunsmith, pistolsmith, barrelsmith for pistol/shotgun/black rifle and
a machinist with a huge common sense.
He is one of those un-sung professionals behind the scenes
who make the jobs run smooth and the world go round.
He is the gentleman who, seeing the very first protos, questioned the usefulness of
the undercuts in the front portion of the receiver. Eliminating these undercuts resulted in an
even more robust front of the receiver.
Russ provided invaluable advice and expertise regarding bedding solutions of this project.
Being one of the first people to see the first protos during development,
he also gave me the just right amount of encouragement.



Paul Miller, PhD, is a chief engineer, designer of military firearms,
design analyst, and test program manager.
He is one of the people who designs and develops the firearms of tomorrow.
Paul gave me a much needed peace of mind and confidence by double checking my calculations.











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http://www.rimfirecentral.com/forums/showthread.php?t=387308
 
Awesome idea.

In regards to receiver design, it would be interesting to have a receiver that mimics an M-14 receiver in regards to heel configuration and so forth. Of course, it would have to interface with a good aperture type sight.
 
Thank you for the post 22Short! As I posted at RFC, Lector has elevated himself to Guru status with this development.

I'll be picking up one of these for sure. It's a genius idea that I can't wait put through it's paces.
 
You might want to look at how these guys do it:
http://www.moaguns.com/rec10_22.html

The receiver is stainless steel and they have the anchor lug at the rear so that the action doesn't teeter-tottering in the stock when you free float.

Would recommend having interchangeable rails though so that the cant can be changed. Looks like it will be a great receiver for distance shooting
 
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Thanks for this thread and many thanks to everybody for their comments.


The apperture sights that work on a OEM receiver will also work on
the flat-top version of this receiver.










kombayotch said:
You might want to look at how these guys do it:
http://www.moaguns.com/rec10_22.html

The receiver is stainless steel and they have the anchor lug at the rear so that the action doesn't teeter-tottering in the stock when you free float.

Would recommend having interchangeable rails though so that the cant can be changed. Looks like it will be a great receiver for distance shooting
Click to expand...

Long before this project, I wanted to use removable second hold-downs.
For the protos of this project,
as removable second hold-down I used flat bar held with screws on the
reclined rear portion of the receiver.
Mr Josef Dlask did not like this solution and ask me to replace it, which I did.
This updated version of the second hold-down is made to be easy to use
together with pillar bedding.
It is a lug similar to your example, but higher relative to the receiver and
it is removable.
I hope Mr Dlask will approve of it.

Yes, this receiver will have a flat top version, exactly for the purpose of
using inclined rails.









I am not a guru, but rather a humble student of the 10/22 :redface:
 
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So, the serial number on the 10/22 is on the receiver, no? Does this mean that we can build a 10/22 without buying a 10/22? I would really love to be able to do that, instead of building something up and having a pile of parts afterwards.

Sorry, I'm a little new to this stuff.
 
aftermidnight said:
Very cool Dr. Any idea of time line for availability? And ballpark price? :cool:
Click to expand...

I cannot answer specific questions about the time line and price,
as I have almost nothing to do with the manufacturing of this receiver.
I passed the design and the whole project to Joe Dlask
and DlaskCo will make it.
After a holiday, they are pretty swamped right now
catching up with backorders.
If you call Joe Dlask, he would give you more accurate info
about time and price.

A very wild guess is that the package of:
- threaded receiver,
- second hold-down,
- threaded barrel,
- jam-nut,
would run discounted in the beginning at about $475
with a regular price of about $550.
But please remember, it is a very wild guess of mine.

I knew it would ring a bell in some circles of certain 10/22 people,
but honestly, I didn't expect this design to raise so much interest
like it does, both from Canada and abroad, as I receive
tons of enquiries about availability.
Unfortunately, as I said, I do not know much about time and price.






P12 said:
Is the bolt and the trigger group assembly included with the purchase of the receiver?
Click to expand...
No, it is only the receiver, barrel, second hold-down and jam-nut.









Hodaka said:
So, the serial number on the 10/22 is on the receiver, no? Does this mean that we can build a 10/22 without buying a 10/22? I would really love to be able to do that, instead of building something up and having a pile of parts afterwards.

Sorry, I'm a little new to this stuff.
Click to expand...
People are building guns on custom receivers since forever.
Here is some info about that, but it is a very long thread:
http://www.canadiangunnutz.com/forum/showthread.php?t=432839
You would still need to buy a trigger group, bolt, recoil spring.
Google these:
ruger1022receiver.com
hornetproducts.com
 
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