07-09-2016, 11:55
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#1
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Area Commander
Join Date: Nov 2004
Location: Lone Star
Posts: 2,153
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6.5 Creedmoor upper, Larue lower project
Gentlemen,
do you know what upper brand would fit Larue 7.62 lower?
Would GA precision Seekins Precision upper fit?
I saw plenty conflicting info in my research so perhaps one of ya'll here has sucessfuly done so and provide empirical data. The final goal is to have 6.5 Creedmoor platform for PRS matches. If I'm not mistaken I can still use the 7.62 mags?
I'd like to use Larue lower to save $$$ and since it already has a fine tuned 0.5 oz trigger courtest of Bill Geissele 
__________________
"we also rejoice in our sufferings, because we know that suffering produces perseverance; perseverance, character; and character, hope" Rom. 5:3-4
"So we can suffer, and in suffering we know who we are" David Goggins
"Aide-toi, Dieu t'aidera " Jehanne, la Pucelle
Der, der Geld verliert, verliert einiges;
Der, der einen Freund verliert, verliert viel mehr;
Der, der das Vertrauen verliert, verliert alles.
INDNJC
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frostfire is offline
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07-25-2016, 13:37
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#2
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Area Commander
Join Date: Nov 2004
Location: Lone Star
Posts: 2,153
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well, did tons more research and called various companies.
So far: AR10 and Knights fit Larue 7.62 lower.
I just have to find a 6.5CM builder in armalite frame since I doubt KAC would venture there with all the military contract. If only Larue would hear the PRS crowd and make 6.5CM...
...or I can always heed one of the QP's advice here and go for bolt i.e Ruger PRs and be done with it. It's just I spent so much fine tuning that Larue lower and wish all the muscle memory would trasfer to a 6.5 CM for longer reach
__________________
"we also rejoice in our sufferings, because we know that suffering produces perseverance; perseverance, character; and character, hope" Rom. 5:3-4
"So we can suffer, and in suffering we know who we are" David Goggins
"Aide-toi, Dieu t'aidera " Jehanne, la Pucelle
Der, der Geld verliert, verliert einiges;
Der, der einen Freund verliert, verliert viel mehr;
Der, der das Vertrauen verliert, verliert alles.
INDNJC
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frostfire is offline
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07-25-2016, 14:11
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#3
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Quiet Professional
Join Date: Jan 2004
Location: Free Pineland
Posts: 24,823
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I would avoid the Armalite lower as it ties you to Armalite mags, which are expensive and finnicky.
I strongly suspect that if the Knight's fits, any of the DPMS type uppers would fit as well, but it may vary since there are no official AR-10 specs, unlike the AR-15. Use one that takes the SR-25/DPMS type mags, like the ones made by Magpul.
You may have to experiment by trial and error. Generally, all of the AR 7.62 rifles are potentially interchangable except for the Armalite AR-10.
All you are really looking for is a barrel swap into a properly assembled precision upper, correct?
TR
__________________
"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat." - President Theodore Roosevelt, 1910
De Oppresso Liber 01/20/2025
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The Reaper is offline
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07-25-2016, 19:13
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#4
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Area Commander
Join Date: Nov 2004
Location: Lone Star
Posts: 2,153
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Quote:
Originally Posted by The Reaper
I would avoid the Armalite lower as it ties you to Armalite mags, which are expensive and finnicky.
I strongly suspect that if the Knight's fits, any of the DPMS type uppers would fit as well, but it may vary since there are no official AR-10 specs, unlike the AR-15. Use one that takes the SR-25/DPMS type mags, like the ones made by Magpul.
You may have to experiment by trial and error. Generally, all of the AR 7.62 rifles are potentially interchangable except for the Armalite AR-10.
All you are really looking for is a barrel swap into a properly assembled precision upper, correct?
TR
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more of upper swap. To have a designated upper (was planning AR10) in 6.5 CM. So with same Larue lower, I have 7.62 OBR upper and a 6.5 CM semi upper.
So I definitely won't be using Armalite lower
__________________
"we also rejoice in our sufferings, because we know that suffering produces perseverance; perseverance, character; and character, hope" Rom. 5:3-4
"So we can suffer, and in suffering we know who we are" David Goggins
"Aide-toi, Dieu t'aidera " Jehanne, la Pucelle
Der, der Geld verliert, verliert einiges;
Der, der einen Freund verliert, verliert viel mehr;
Der, der das Vertrauen verliert, verliert alles.
INDNJC
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frostfire is offline
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08-04-2016, 08:31
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#5
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Area Commander
Join Date: Nov 2004
Location: Lone Star
Posts: 2,153
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In my research into the subject, I found an englighting piece on AR vs. bolt in regards to PRS application....primarily on accuracy overlap between the two and correlation between group size and hit probability
http://precisionrifleblog.com/2016/0...r-ar-showdown/
also detailed look into nuts and bolts of perceived recoil
http://precisionrifleblog.com/2015/0...ipment-rifles/
__________________
"we also rejoice in our sufferings, because we know that suffering produces perseverance; perseverance, character; and character, hope" Rom. 5:3-4
"So we can suffer, and in suffering we know who we are" David Goggins
"Aide-toi, Dieu t'aidera " Jehanne, la Pucelle
Der, der Geld verliert, verliert einiges;
Der, der einen Freund verliert, verliert viel mehr;
Der, der das Vertrauen verliert, verliert alles.
INDNJC
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frostfire is offline
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