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 Post subject: Anyone with a very accurate LR308?
New postPosted: June 3rd, 2017, 2:15 pm 
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I know that bolt guns are more accurate, but does anyone here have an LR308/AR10 that shoots near 1/2 MOA? If so, what barrel/BCG did you use?


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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 4th, 2017, 2:12 am 
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Joined: March 16th, 2007, 2:46 pm
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Location: Goodyear
Factory Armalite AR10T with the 24" heavy stainless Lothar Walther barrel. Just a shoot'n SOB. Just don't be making any plans on taking it out for a hike!

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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 4th, 2017, 7:20 pm 
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Sounds like a beast! Do you think the bolt carrier plays much role in accuracy (assuming the bolt is matched)?


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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 5th, 2017, 10:34 am 
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There is an older gentleman that shoots with us in our monthly match that uses a bone stock bushmaster with a 14 power Nikon scope and does really really well. He consistently finishes up on top or very near the top. I'm not sure what his exact load is but I know that it is IMR 4064 under a 168 Nosler CC bullet. Very Accurate combo.

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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 5th, 2017, 12:26 pm 
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Joined: December 4th, 2007, 11:56 am
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Location: Tempe
Racewin wrote:
I know that bolt guns are more accurate, but does anyone here have an LR308/AR10 that shoots near 1/2 MOA? If so, what barrel/BCG did you use?


I'd say mine is near 1/2 MOA.

DPMS LR-308. 24" factory stainless barrel, factory BCG, RRA 2 Stage Trigger, factory A2 stock cavity lead filled, Sightron SIII 8-32x56.

LC Brass, CCI BR2, Nosler 168gr CC, 38gr Ramshot TAC.


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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 5th, 2017, 10:11 pm 
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STOMP442 wrote:
There is an older gentleman that shoots with us in our monthly match that uses a bone stock bushmaster with a 14 power Nikon scope and does really really well. He consistently finishes up on top or very near the top. I'm not sure what his exact load is but I know that it is IMR 4064 under a 168 Nosler CC bullet. Very Accurate combo.


That's the second person I've heard of 4064 being very accurate in 308.

Jeff H wrote:
Racewin wrote:
I know that bolt guns are more accurate, but does anyone here have an LR308/AR10 that shoots near 1/2 MOA? If so, what barrel/BCG did you use?


I'd say mine is near 1/2 MOA.

DPMS LR-308. 24" factory stainless barrel, factory BCG, RRA 2 Stage Trigger, factory A2 stock cavity lead filled, Sightron SIII 8-32x56.

LC Brass, CCI BR2, Nosler 168gr CC, 38gr Ramshot TAC.


I've heard a lot of people like TAC, ever tried Varget?

So it sounds like the LR308 is pretty inherently accurate...are the expensive bolt carriers worth the money?


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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 6th, 2017, 9:28 am 
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Location: Goodyear
I loaded 168gr Spitzer with 45grs of Varget. Very good combo out of my rifle and put an elk down with one shot. I haven't played with any of the "expensive" BCG's because I haven't had the need to.

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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 6th, 2017, 9:50 am 
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Joined: March 31st, 2005, 10:16 pm
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Location: AZ
.308 Semi-Auto Match
Guaranteed to shoot ½” MOA! Included with each gun is a target with two five-shot groups shot at 100 yards.
https://www.lesbaer.com/AR308.html


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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 6th, 2017, 10:11 am 
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Joined: December 4th, 2007, 11:56 am
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Location: Tempe
Racewin wrote:
STOMP442 wrote:
There is an older gentleman that shoots with us in our monthly match that uses a bone stock bushmaster with a 14 power Nikon scope and does really really well. He consistently finishes up on top or very near the top. I'm not sure what his exact load is but I know that it is IMR 4064 under a 168 Nosler CC bullet. Very Accurate combo.


That's the second person I've heard of 4064 being very accurate in 308.

Jeff H wrote:
Racewin wrote:
I know that bolt guns are more accurate, but does anyone here have an LR308/AR10 that shoots near 1/2 MOA? If so, what barrel/BCG did you use?


I'd say mine is near 1/2 MOA.

DPMS LR-308. 24" factory stainless barrel, factory BCG, RRA 2 Stage Trigger, factory A2 stock cavity lead filled, Sightron SIII 8-32x56.

LC Brass, CCI BR2, Nosler 168gr CC, 38gr Ramshot TAC.


I've heard a lot of people like TAC, ever tried Varget?

So it sounds like the LR308 is pretty inherently accurate...are the expensive bolt carriers worth the money?


I've tried Varget, BL-C(2), AA2520 and Win 748. They all did well in that rifle, just not as good as TAC.


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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 6th, 2017, 11:04 am 
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AZS; Woohoo!
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Joined: August 21st, 2008, 3:07 pm
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Location: Safford, Arizona
4064 is my go to powder for .308. I have never got Varget to ever shoot near as good for me.

This is the last .308 I built and worked up a load for.
Tikka Action. 26" Proof barrel
Bell & Carlson M40 Stock
Jard trigger @ 1.5lbs
Leupold VX3 6.5-20x50

Image

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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 6th, 2017, 12:32 pm 
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Joined: March 31st, 2005, 10:16 pm
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I like IMR 4895 for the 308. For the bolt gun and M1A match.


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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 6th, 2017, 2:48 pm 
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My load for the M1A was 42.2gr IMR-4064 in Remington brass, under a 175SMK, with the Federal Large Rifle FGMM Primer, with the bullet seated at 2.815" OAL for magazine feeding. Back then, I recommended that this be considered a max load with IMR-4064. Folks load the 175SMK hotter now, but I wouldn't. This load has been published now for going on 20 years.

I wrote an article in Precision Shooting about this load, intended to get to 1000yd supersonic out of the M-14/M1A. It was taken up by a lot of folks, and the general consensus was that it was accurate from both bolt guns and semi's.

Naturally, start with a lower charge weight and work up with a careful eye to pressure signs; and please recognize that I can't assume responsibility for ammunition I don't fabricate by myself.

Greg


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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 6th, 2017, 6:05 pm 
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JarheadAZ wrote:
My load for the 42.2gr IMR-4064 in Remington brass, with the bullet seated at 2.815" OAL for magazine feeding. Back then, I recommended that this be considered a max load with IMR-4064. Folks load the 175SMK hotter now, but I wouldn't. This load has been published now for going on 20 years.

I wrote an article in Precision Shooting about this load, intended to get to 1000yd supersonic out of the M-14/M1A. It was taken up by a lot of folks, and the general consensus was that it was accurate from both bolt guns and semi's.

Naturally, start with a lower charge weight and work up with a careful eye to pressure signs; and please recognize that I can't assume responsibility for ammunition I don't fabricate by myself.

Greg

(42.2gr IMR-4064 in Remington brass) So the op-rod can handle that load?


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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 6th, 2017, 7:44 pm 
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It shouldn't be too bad. I run 44g of BL(c)-2 with 168s out of my M1A with no issues.

I'm just not a 4064 fan. For 1935 technology it still works and works well but hand weighing every charge is not part of my reloading plan.


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 Post subject: Re: Anyone with a very accurate LR308?
New postPosted: June 7th, 2017, 10:23 am 
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Sure seemed like it handled it fine in my SA 'Loaded' M1A back then. I parted with my M1A about ten tears later, never heard of any problems from the buyer, a close friend who was helping me out in a dry spell.

At that time, I stepped away from the .308 and concentrated on the .260. I have just reentered the .308 zone, and will be testing this load again in a Savage 11VT, substituting for the 175SMK with the Hornady 178gr ELD-X. Too early to tell, but I expect to be doing initial shooting with it sometime in the next two weeks. The Hornady 10th Edition (new, current) manual does not list IMR-4064 with this bullet, but lists Varget as max with 42.4gr, and lists 150gr and 190gr bullet charges on Varget and IMR-4064 as being either identical (w/150gr) or within .1gr (190gr) of each other. That's not an endorsement, it's just an observation.

I don't hand weigh my charges, but use the Hornady Lock-n-Load Automatic Powder Dispenser. It gives me charges accurate to .1gr just about as fast as I can use them when loading on the Dillon RL-550B in progressive mode. I pop the case out of the base plate at the powder station, and charge the case directly from the pan http://www.midwayusa.com/product/118739/lyman-electronic-scale-powder-funnel-pan. I have used Varget charges weighed this way in .223/75gr loads at 600yd in national competition, and they are 'in there'. The dispense works; it allows me to make accurate ammunition a lot faster than when I was doing it all by dropping charges with the Dillon measure, then hand checking/adjusting them on an RCBS electronic scale.

Greg


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