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Centerfire Rifles - Manually Operated Lever action, bolt action or other non gas operated centerfire rifles.

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  #1  
Old 12-13-2015, 10:09 AM
13fsutter 13fsutter is offline
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Default rem700 blank??

i am looking to milling my own rem 700 .338 lapua receiver. problem is ive heard of guys having blanks for sale but i can not find one to save my life. i do have the prints and measurements to be able to mill one. anyone know where to look for the blanks?
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  #2  
Old 12-13-2015, 10:11 AM
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http://bugholes.com/index.php?route=...ory&path=88_89
http://bullets.com/products/category/790000
http://www.otmtactical.com/BARRELS_c_13.html

Also, read this thread:
http://www.caprc.com/forums/viewtopic.php?f=23&t=1114
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Last edited by ar15barrels; 12-13-2015 at 10:14 AM..
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  #3  
Old 12-13-2015, 10:19 AM
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im looking but none are shown.
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  #4  
Old 12-13-2015, 10:29 AM
Fjold Fjold is offline
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I believe the OP is looking for an 80% receiver blank not a barrel blank.
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  #5  
Old 12-13-2015, 10:33 AM
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Quote:
Originally Posted by Fjold View Post
I believe the OP is looking for an 80% receiver blank not a barrel blank.
LOL, I assumed he was looking for a BARREL blank since he mentioned 338 Lapua.
Nobody makes a 338 Lapua sized 700 receiver "blank" as 338 Lapuas are generally built on a 0.750" diameter bolt raceway and a 1.450" receiver diameter.
They only make them in the smaller 0.700" diameter bolt raceway models.

Here is one of the guys that used to sell blanks:
https://www.facebook.com/JPLongfello...1783655028679/
That guy had blanks available a couple years ago, but have not been available since then.
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Last edited by ar15barrels; 12-13-2015 at 10:48 AM..
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  #6  
Old 12-13-2015, 11:00 AM
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sorry i havnt been more clear still not up yet. late night. ive seen a few places advertising ar lowers for .338 but i dont see a lapua fitting in the magwell. maybe a .338 whisper unless im wrong. but thank you. thats the problem im running into they have seemed to just disappear. id rather build a bolt action as i have my AR's
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  #7  
Old 12-13-2015, 11:35 AM
LynnJr LynnJr is offline
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Action Blanks - Long & Short
I have been cutting and supplying action blanks for a number of years but have never actually posted my information here so I thought I would now.

Bolt Action Blanks - Long & Short

Long Action Blanks - 9.25" X 1.5"
Short Action Blanks - 8.25" X 1.5"

These blanks are for home action builders with a mill and lathe. They are Wire EDM cut from 1.5" USA made certified 17-4PH Stainless Steel Condition H1025 which is approx 38RC hardness.

The outside is turned true to the bore and will yield up to a 1.450 diameter action. The bolt way wire cut and will not require any additional work. It is very smooth with no wire marks

They are cut with a .700 - .701 bore and will work nicely with a Remington Bolt or a .6995" PTG bolt for a benchrest quality fit.

My standard bolt profile is shown below, but I can cut any profile that you want. I can also cut blanks from your material if you prefer something besides the material I keep in stock.

Long Action $250.00
Short Action $210.00

Shipping $10.00 each

Gary Breiling
210 S McClellan ST
McLeansboro, IL 62859
618-383-3170

glbreil@frontier.com

Tell Gary Lynn says hello
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  #8  
Old 12-13-2015, 3:00 PM
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Am I correct in assuming that's a copy paste of something that Gary posted somewhere else?

I'm curious what operations need to be completed for these receivers to be fully functional.
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  #9  
Old 12-13-2015, 3:18 PM
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From what I've read, a lot of mill and lathe time.
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  #10  
Old 12-13-2015, 3:52 PM
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Quote:
Originally Posted by SilentPea View Post
I'm curious what operations need to be completed for these receivers to be fully functional.
The blanks are just a round piece of material with a bolt bore and lug raceways.



You would need to bore the front end, cut the lug seats, cams and threads.
Then the ejection port and the loading port in the bottom.
Then the trigger mounting area.
Then the whole rear tang including the primary extraction cam.
Then all the screw holes.

Think of the blanks as being about 10% complete.
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Most work performed while-you-wait, evening and weekend appointments available.
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Last edited by ar15barrels; 12-13-2015 at 3:55 PM..
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  #11  
Old 12-13-2015, 4:00 PM
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When in the process are the receivers heat treated?
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  #12  
Old 12-13-2015, 4:03 PM
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Quote:
Originally Posted by russ69 View Post
When in the process are the receivers heat treated?
The blanks should be pre-hard material.
The bolts are usually about 10 points harder than the receivers so they won't gall.
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AR work: www.ar15barrels.com
Bolt actions: www.700barrels.com
Foreign Semi Autos: www.akbarrels.com
Glock, XD and M&P pistols, Benelli and Remington shotguns: barrel, sight, trigger and receiver work.
Most work performed while-you-wait, evening and weekend appointments available.
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Old 12-13-2015, 5:45 PM
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The blanks are already 38RC heat treated.
The idea is you can use tenon threads that are larger in diameter than the 1.062 you get from a factory Remington so the original poster will gain extra metal especially if he is building a 338 Lapua that is 0.590 diameter.
I don't want to put words in Gary's mouth but you could call him and ask if he would cut the Raceway to 0.750 if you feel it is necessary.
On the tang you can cut it pointy like a Remington or squared off like most custom actions your choice.
You can also make one into a drop port or micro port.

The post was on The Practical Machinist website but Gary is often times found on Benchrest Central as well.
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Old 12-13-2015, 7:01 PM
Fjold Fjold is offline
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You can cut these for either a left or right handed action. Because of the Remington anti-bind feature you just have to swap ends to make them left handed.
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  #15  
Old 12-14-2015, 9:07 AM
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Gary will make you whatever "blank" you want but you need to know how to take the image posted above and make an action out of it. If you need to ask then you don't have the tools to do it.
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Old 12-14-2015, 9:36 AM
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Quote:
Originally Posted by milotrain View Post
If you need to ask then you don't have the tools to do it.
Most likely true.

Here is a cross-section of a basic 700 receiver design which will show someone most of the necessary cuts:

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AR work: www.ar15barrels.com
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Foreign Semi Autos: www.akbarrels.com
Glock, XD and M&P pistols, Benelli and Remington shotguns: barrel, sight, trigger and receiver work.
Most work performed while-you-wait, evening and weekend appointments available.
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Old 12-14-2015, 11:52 AM
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I wouldn't go with an R700 for a Lapua as I'd rather have a more substantive bolt.
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Old 12-14-2015, 5:29 PM
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Very cool, I definitely have all the tools to do that. Just not the patience, skill, or time!
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Old 12-14-2015, 5:43 PM
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Quote:
Originally Posted by SilentPea View Post
Very cool, I definitely have all the tools to do that.
How would you go about cutting the receiver's lug helixes and the primary extraction cam into perfect timing?



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AR work: www.ar15barrels.com
Bolt actions: www.700barrels.com
Foreign Semi Autos: www.akbarrels.com
Glock, XD and M&P pistols, Benelli and Remington shotguns: barrel, sight, trigger and receiver work.
Most work performed while-you-wait, evening and weekend appointments available.
Founding member of the CAPRC

Last edited by ar15barrels; 12-14-2015 at 5:56 PM..
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Old 12-14-2015, 6:43 PM
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Randall
You can make the cut on the backside of the bolts locking lug can't you?
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  #21  
Old 12-14-2015, 9:27 PM
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Quote:
Originally Posted by LynnJr View Post
Randall
You can make the cut on the backside of the bolts locking lug can't you?
Yes, but it's stronger to do it on the receiver.
That's why all commercially produced actions are done that way.
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AR work: www.ar15barrels.com
Bolt actions: www.700barrels.com
Foreign Semi Autos: www.akbarrels.com
Glock, XD and M&P pistols, Benelli and Remington shotguns: barrel, sight, trigger and receiver work.
Most work performed while-you-wait, evening and weekend appointments available.
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Old 12-18-2015, 4:14 PM
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I'm sure there's a "correct" way, but I'd probably go after it with a rotary table + quill feed with a gear linkage. I'd probably mess it up though, hence the "lack of skill" comment from above....
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Old 12-18-2015, 6:09 PM
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The ways I know of:






You still need to be very conscious about how the modifications of certain dimensions affect extraction and cocking cam timing with the bolt. I don't believe the process involved are particularly complicated but because it makes sense to start with a blank in a prehard state you are going to need carbide tooling and fairly stiff machines (or a crazy amount of patience). The magazine well in the 700 is a complicated mess, if you are just building a single shot life is a whole lot easier.
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