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LWRC Six8 22Nosler

4962 Views 23 Replies 9 Participants Last post by  BLDtylry
Alright, just picked up a LWRC Six8 Stripped Upper and Lower and wanted to build it into a 22Nosler platform to take advantage of the slightly longer COAL and use PMAGs. I've read all the forums/threads on the LWRC/Magpul 6.8SPC mags and how to modify to get a longer COAL. I already understand the advantages/disadvantages of the 6.8SPC PMAGS so I'm not looking for justification or issues specifically with the PMAGS or why I should be using a standard AR15 lower and metal mags. Purpose of this build is for a long-range varmint out to 1000yds shooting 75gr, 77gr, and 80gr bullets.

My question is, anyone done this already or plan to? I'm interested in finding out any specific issues with the Six8 build-out. I talked to a LWRC Rep at TRIGGRCON this last weekend and he said there should be no issue as the Six8 platform uses all of the same small parts as a standard AR15.

So here's my proposed build list:
LWRC Six8 Upper and Lower
JP Low Mass BCG
PROOF Research 22" CF 22Nosler Barrel
SLR Helix 16" MLOK Handguard
Geissele Hi-Speed Match Trigger
Magpul UBR Gen2 Stock
Vortex Viper Gen2 5-25x50
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You may be the first for the 22 Nosler. I seem to recall Wassman was able to load out to 2.340" with the mod he did on his Six8 mag in the 6.8. I haven't tried it. And not sure there's much of an advantage over a cut-out PRI mag with a regular lower.
I had the parts to do it but changed my mind.
wow--- 1000 yards with a 22 nosler??

I dont shoot a 22N, but at 1000 yards, my 22-250 26" bolt gun has a 32 FOOT drop, and a 10 mph wind gives me 25 FOOT of windage adjustment (according to my ballistic app) --- also it only has 900 fps velocity ( so it is not only transsonic, but subsonic) and only 80 ft lbs of energy

I don't shoot 80 grain bullets due to the twist rate of my barrel, but I do hit almost 4000 fps with my 55 grain bullets ---I'm not sure your combo will be up to a true 1000 yard gun
I had thought about it, but like Texas HM I would not use it for 1000 yards. For 500 yards or less my 204 Ruger will do.

Your parts list looks perfect but I would look to other barrel companies and at least 22 inches and 24 better for longer distances.

American Rifleman stated that Nosler used a 24 inch test barrel to get 3500 fps with the 55 gr Varmint bullet.

White Oak has 22 and 24 inch barrels on 1:8 and 1:12 twist

Midway has a low cost Stoner 18 inch barrel for $139

Odin Works has several barrels too.

I would get everything I wanted from X-Caliber. Length, twist fluting etc just pick!
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Midway 22 Nosler barrel

Darn YOU, Just ordered the Midway AR Stoner 22 Nosler barrel and one box of 77 gr Nosler ammo.

I can build at least 4 uppers from the parts I have. Have 5 extra lowers at this moment. The 22 Nosler deserves a SSA-E trigger and maybe a rifle length buffer system. Also a high power scope.
Heard those stoner barrels are [email protected] ...hope u get a good one
3
One of those GOOD Stoner barrels.







Greg
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It had pretty good reviews on Midway most using factory ammo. I will only be shooting Nosler factory ammo, until Hornady or someone else loads for it.

Nice barrel for the money, fit is good ,finish is good , shoots 3/4 in groups at 100 yds nice product.
Installed this 22 Nosler barrel into a Stoner side charging upper receiver. After break in period it was shooting sub MOA groups at 300 yards.
Good quality for the price. Ordered Nosler 77gr match ammo with barrel and was getting 2830fps with under 1/2" groups @ 100 yards and 3" groups @ 500 yards with a vx2 3-9 scope.
Hey I may hate it if it isn't accurate. I have one other AR Stoner barrel in 223 Wylde and it shoots great (52gr SMKs)

To those who are giving bad reviews it seems as though they are those who are trying to load this caliber versus using the 22 Nosler Ammo. Those complementing it dont mentioning trying other loads. Im driving nails at 100 yards and this round is one hot round just as marketed by Nosler. I matched it up with a Ruger upper/lower and a Nickel Boron BCG. Best varmit gun hands down and I cant wait to try and see how it does on hogs. It might be a little light but with my top rates muzzle brake I will have no problem putting multiple rounds into the pesky nusiances if need be. Ive had two very good and older gun smiths that couldnt believe the quality of this barrel for the price from Midway. Build it right and use the Nosler ammo and you will be supper happy with this barrell.
I ordered a Mega side charger upper it will be heavy and very stiff. I have several QPQ and NiB 223 carriers with adjustable carrier keys.

I will use either a Vltor A5 buffer tube or an POF 8 position buffer tube. I have LOTS to play around with. At 47 ounces the barrel is heavy and stiff, but the fluting probably cuts a couple of ounces LOL.

I noticed every negative report on Midway were people reloading.

I like the fact people think it has a mild recoil. I might try it with a light weight lower.
It had pretty good reviews on Midway most using factory ammo. I will only be shooting Nosler factory ammo, until Hornady or someone else loads for it.

Hey I may hate it if it isn't accurate. I have one other AR Stoner barrel in 223 Wylde and it shoots great (52gr SMKs)
The factory ammunition route is great for some guys. I prefer to keep my costs down and the quality of the shooting up at the same time. This barrel here isn't cutting it. The aftermarket tubes out there are shooting very well based on three or four makers I've been following. BHW, ARP and WOA are all shooting VERY well. I'd stick with a proven winner before I'd go back to anything with the name STONER on it.

Greg
I am frugal. actually cheap.

But I have had only one barrel over the last 5 years that wouldn't do under 1 MOA. Even the $79 556 barrel I built for my son would do 3/4 MOA with cheap 556 ammo.

I really like the flat shooting 204 Ruger, better than my 223 wylde uppers.

I probably should have gone with the 20" ARP, only 1 ounce heavier and sure to be sub MOA. But I didn't even look. My bad.
I have a 204Ruger and it shoots sub-moa with 40gr VMax out to 400yds. In windy conditions it gets blown around easily at 500yds. Thats why I want to shoot the heavy .22cal. 1000yds is pushing it but 800yds should be repeatable.

A 24" barrel would be ideal. I originally had a ARP 20" 22Nosler but it was stolen before I had a chance to even shoot it. So now I'm rethinking the build and wanted to go Six8 mags to maximize COAL and run reliably.

I guess I'll be the first here to run a Six8 on something other than 6.8SPC. I do have a ARP 5.56x42 which I can test out before buying a 22Nosler barrel to ensure functionality.
So now I'm rethinking the build and wanted to go Six8 mags to maximize COAL and run reliably.
I guess I'll be the first here to run a Six8 on something other than 6.8SPC.
I wasn't aware that the Six8 had any longer COAL capacity than the standard 6.8 since it uses the Pmag.
I wasn't aware that the Six8 had any longer COAL capacity than the standard 6.8 since it uses the Pmag.
Only a slight difference. Really much. The PRI 6.8 cut out mags like what CavityBack sells are a better option IMO. Now if somebody decides to make a metal mag for the Six8, that will be significant.
I was thinking of a custom 24" Nosler barrel in 5R rifling.

But I can only get it in 1:7 twist. Do you think that would be OK for the 77 grain factory rounds?
I was thinking of a custom 24" Nosler barrel in 5R rifling.

But I can only get it in 1:7 twist. Do you think that would be OK for the 77 grain factory rounds?
I think it will do fine with a 1:7. It might be quick for the light 40-50 if you used thin skinned pills and drive them hard. I've blown up 50 VMAX in a 1:8.

Greg
Finally settled on a barrel, scope and handguard.

  • BSF 24" 8-Twist 416R Carbon Jacketed barrel
  • Vortex Golden Eagle 15-60x52 ECR-1 MOA. This is a lot of scope but why not.
  • SLR 16.5" Solo Ultra Lite
Updated parts List:

  • Timney Calvin Elite AR15 Trigger 1.5lbs Single Stage
  • Young Manufacturing NM AR15 BCG
  • American Defense SL Scope Mount
  • Luth-AR MBA-3 Stock
  • BCM Mod3 Pistol grip
  • Knights Armament Trigger Guard
  • Seekins 90/60 Deg Safety Selector
  • PWS H2 buffer
  • PWS QD End Plate and Castle nut

BTW - PWS Enhanced Mod2 Buffer Tube will not work because of interference when threading the buffer tube into the Lower Receiver. Will only screw in halfway.

Still waiting on the BSF Barrel.
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You may be pretty unhappy with the Stoner 22N barrel. They are $139 for good reason and seem to average about 1.5-2 MOA. Calculating that out to 500 or 1000 yards and the varmints will have the advantage if they decide to counter attack. Can you even load heavier than 69gr in a 22N for use in the standard 22N AR chamber? You may want to research that a little more. I read somewhere that it's not a viable option and why neither Nosler or anyone else builds ammo with heavy bullets in it or long ammo. It ain't no Wilde chamber/throat for certain I understand.

Honestly, I think you may be asking a bit too much from a caliber that's not much more than a mildly modified 223. And maybe reading too much into Nosler's marketing for it.

Also be careful about loading hot in that crap 22N brass that Nosler produces. It's soft and inconsistent enough that once fired brass varies in length enough that some may need trimming right off and some may not, even with the same load shot with it. If you intend to load flat based bullets in it be sure to add a few more turns of chamfer to the necks. Flat based bullets, that loaded easily with a normal chamfer in 223/5.56 brass, crushed several 22N necks on the first few I loaded. I had to resort to an excessive amount of chamfer to prevent that. Indicative of soft brass. No, it isn't the expander button in my die. I swapped that after the first couple crushed necks with the carbide in my 223 die and it made no difference.

I wouldn't expect much out of a 22N at 1000 yards or even much over 500 yards. With a rpund that only produces about 200 to, realistically, at most, 300 FPS more than a 223 you'll be subsonic and tumbling before it ever gets there with the bullets recommended for it.

MDWS is developing a 22 caliber based directly on the 6.8 SPC case and looks like it will more closely rival 22-250 performance. Had I known that previously I would have never bothered with a 22N.
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