Chances of Building a <1 MOA .308 AR at 10 lbs???

[Grump]

I'm almost ready to drink the DI Kool-Aid and plan for a .308 or 6.5 Creedmoor AR rifle for use out to 1,000 yards.

But I'm an old Service Rifle shooter who also values the ability to actually carry a rifle, I'd really like to have the tonnage of the piece come in about 10 pounds or less empty, without optic.

Am I dreaming here???

 

[BCP]

Re: Chances of Building a <1 MOA .308 AR at 10 lbs???

It's possible.

 

[B3dlam]

Re: Chances of Building a <1 MOA .308 AR at 10 lbs???

Its quite possible. Mine weighs in at 17 lbs total with everything on it but I have a 24" bull barrel and the scope alone is like 2.5 lbs. You could get around 10 maybe if you went with a lighter profile on the barrel found a stock lighter then the PRS and things like that.

 

[icarus2005]

Re: Chances of Building a <1 MOA .308 AR at 10 lbs???

I bought one ready made, it's called the FNAR, which is not really an AR, but it is light for a 20" barrel gun

 

[Blasst]

Re: Chances of Building a <1 MOA .308 AR at 10 lbs???

Yeah I've got an FNAR also. If Larue builds 308 PredatAR's in the 8 lb range
no reason other people can't. Just take some planning and careful selection of parts.

 

[Oakland Tactical]

Re: Chances of Building a <1 MOA .308 AR at 10 lbs???

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Grump</div><div class="ubbcode-body">I'm almost ready to drink the DI Kool-Aid and plan for a .308 or 6.5 Creedmoor AR rifle for use out to 1,000 yards.

But I'm an old Service Rifle shooter who also values the ability to actually carry a rifle, I'd really like to have the tonnage of the piece come in about <span style="color: #FF0000">10 pounds or less empty, without optic.</span>Am I dreaming here??? </div></div>

LMT MWS is 9.9 pounds and mine is for all all intents and purposes with a Nightforce NXS 2.5 to 10 compact and NF Unimount is 10#+1#3oz+6oz for a total of 11 pounds 9 oz I put it on a bathroom scale and it said 12 pounds with a KAC magazine. A 16" Larue OBR and a POF are 6-9 ounces lighter than the 16" LMT stock. It always makes me wonder about all of the people that complain about the LMT being so heavy. The rifle has no problem being sub MOA. A GAP 10 weights about 11 pounds sans optics and mount but it is more accurate.

An AR15 service rifle weights over 9.6 pounds. So you have plenty of options, LMT, Larue, POF and LWRC are all good.

 

[Tx_Flyboy]

Re: Chances of Building a <1 MOA .308 AR at 10 lbs???

Grump,

It's very possible to have a sub-10lb 308AR platform. It all depends on what you want on the rifle.

As far as factory offerings go,

This one from DPMS is only 0.25lbs heavier than your requirement

http://www.dpmsinc.com/LONG-RANGE-LITE_ep_150-1.html

Another option is DPMS LR-308 Classic with a 20" barrel can get you out to 1,000yards...the rifle is incorrectly listed at 11.3lbs, but its actually weighs 9.75lbs.

Here is a parts list that gets you to your goal.

Stocks: Magpul (ACS,CTR,MOE), VLTOR eMOD or IMOD Stock; (w LR-308 Carbine buffer & Spring)
Upper & lower receiver: (DPMS, Mega, LMT, POF, or other SR-25 pattern Receivers)
Trigger of your choice: (but since ur a sling & irons guy like me, u know there's only one trigger Geissele NM or Match rifle trigger)
Barrel: (Rainer arms 20" Ultramax, DPMS now offers a lighter weight barrel that is 24" long...or order a custom turned barrel with a lightweight profile (.750" under the handguard)
Forearm; a carbon fiber FF tube. If you want a railed handguard, the Apex handguard or Troy TRX are the lightest handguards on the market. The samson rails are also noteworthy. Stay away from quad-rail handguards cause they are substantially heavier.
Gasblock: your choice. Aluminium is lighter than steel...but we are taking 1 to 2ozs of savings here.

I think the DPMS LR-308 in the link i sent you is your best bet in a factory rifle...you can swap parts to save weight (the A2 stock can be replaced with a collapsible carbine stock to save about 8-10ounces).

 

[BangBangBlatBlat]

Re: Chances of Building a <1 MOA .308 AR at 10 lbs???

I am of the belief that if you stick a Kreiger barrel on anything, it instantly becomes better. Get an M110 contour barrel, have it fluted, and then have it chambered for M118LR (.020 jump for a 175SMK seated at 2.775.) Or if you went the 6.5mm route, just get it chambered for a magazine length load of your prefered bullet.

The Armalite AR10NM is just over 10-pounds. You would probably get to just under 10 pounds with a fluted barrel in a similarly built rifle (if you wanted to shoot LongRange Service Rifle category.) Otherwise, get a carbon fiber handguard, or something that is not a quad-rail, and you should be under that limit by a bit. If you want even less weight, get a shorter barrel.

Also, there is nothing wrong with the standard AR buttstock. Get an Accuracy Speaks adjustable buttplate if you want fitting options...otherwise I think you would be happy with the fixed buttstock.

 

[Juanjo322]

Re: Chances of Building a <1 MOA .308 AR at 10 lbs???

I was in the same issue as you, I wanted a light rifle .308, I went with a 6.5 Grendel in the AR15, the animals I have shot have fallen just the same.. no slouch in the accuracy dept either.. just sayin..

 

[bribassguy]

Re: Chances of Building a <1 MOA .308 AR at 10 lbs???

I would think it would depend a lot on the length of the barrel.

16-18 it will be close but at 22-24 I don't think so.

 

[icarus2005]

Re: Chances of Building a <1 MOA .308 AR at 10 lbs???

My 20" heavy barrel FNAR is a 10 pound gun, but that's without the scope and loaded magazine.

making a high caliber sub-MOA anything loaded with a scope I would say is impossible, at least with current technolgy