I have a 16” middy WOA 223W barrel. Last time I shot it I was pulling 3/8-3/4” groups at 100 and ringing C-zone IPSC steel at 700 yards. One of my favorite AR’s I’ve ever owned.
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Have you ever thought of using the M110 option for long range? How many folks decide to use a .308 instead of .223 for long range service rifle? Im pretty sure the AMU does, no?20” A2 Service Rifle. It then became an A4 for the 2018 season because despite adequate ability to aim and hold at 1,000, it was shockingly undeniable how badly I got kicked in the balls as far as time on the sights by Army shooters with Nightforces. Time is EVERYTHING at 1,000 when your gun is 1 MOA/mph.
Bartlein 8-6.5” progressive left twist 5R Chromemoly 0.2240x0.2190, chambered by John Scandale at .2240 x 105 freebore..which is now about 160 freebore. 1” under the A2 guards, 0.750” from the block on forward, No threads, no flash hider, no finish. WOA Competition 20TPI extension.
Setup for 90’s only. Sure shoots mag 77’s like ahouse afire though.
Have you ever thought of using the M110 option for long range? How many folks decide to use a .308 instead of .223 for long range service rifle? Im pretty sure the AMU does, no?
Thank you sir
Do the AMU use actual KAC rifles? Or are they Armalites and other assorted builds?Very briefly, then decided maybe I’d just rather not.
Anybody with a brain is leaving their -15 at the 600 yardline.
Anybody that wants to lose shoots against the Army shooters with M110s with their AR15.
Do the AMU use actual KAC rifles? Or are they Armalites and other assorted builds?
No doubt. The Armalite NM's use Wilson barrels, no? Seems like most every mid-high'ish tier AR15 and AR-.308 that DON'T use a custom barrel ([EG: Krieger/Bartlein/Douglas/Criterion SS, Rainier UM's used to be Shilen IDK now tho, Seekins uses Rock Creek button barrels.. andd I believe Radian Weapons uses Lilja or used to?, etc, etc...]), use a Wilson(EG: JP rifles AFAIK) or Green Mountain, or Criterion(Eg: ADM rifles)..?? It'd be nice if more companies went this route, eg: I'd have to think Savage could use Green Mountain for their AR's without raising cost much if any while likely getting better performance at same time, certainly not worse performance.Freeman, and everybody else I saw with fatigues on were shooting what appeared to be identical issued rifles. I can’t say if they were Knights, or NM Armalite, or...
I imagine all of the above could be made to work well with a little trickery from Keystone and Wisconsin. Holliger doesn’t do -10.
I got my gas block from WOA when I got the barrel at their recommendation. Nice block, very snug fit.
I ordered a 18” Douglas from them with the CLE chamber. I took measurements and 69smks were jamming the lands at 2.20. Never got a chance to shoot that barrel. Sent it back to get threaded for the can and had them open it up to a Wylde chamber. She shoots fantasic.
They used to. Not anymore thoIsn’t CLE doing WOA’s barrels?
Thanks. Did their quality go up down or remain the sameThey used to. Not anymore tho
Scroll up and read.Thanks. Did their quality go up down or remain the same
Kac match is KriegerNo doubt. The Armalite NM's use Wilson barrels, no? Seems like most every mid-high'ish tier AR15 and AR-.308 that DON'T use a custom barrel ([EG: Krieger/Bartlein/Douglas/Criterion SS, Rainier UM's used to be Shilen IDK now tho, Seekins uses Rock Creek button barrels.. andd I believe Radian Weapons uses Lilja or used to?, etc, etc...]), use a Wilson(EG: JP rifles AFAIK) or Green Mountain, or Criterion(Eg: ADM rifles)..?? It'd be nice if more companies went this route, eg: I'd have to think Savage could use Green Mountain for their AR's without raising cost much if any while likely getting better performance at same time, certainly not worse performance.
Also I'd consider KAC's SR15 LPR and SR25 PC/PR barrels as fully equal to custom barrels since, even tho they make their barrels in-house, they are single point cut rifled barrels made in-house by @__JR__ w/ 100% the meticulousness and quality control as the likes of Krieger/Brux/Bartlein/Rock Creek, etc..
How yall think ER Shaw compares to Wilson, Green Mountain, Criterion, ..?? Ive always seen em as bottom of the barrel, at least their Adams & Bennett 4140 CM Mauser pre-fit type stuff. But they make SS
I’ve seen them use issued rifles to basically whatever they’ve got. I don’t think it’s ever anything certain,correct me if I’m wrong,but the guys I know personally have showed me their rifles and it’s either an issued rifle or basically a buildDo the AMU use actual KAC rifles? Or are they Armalites and other assorted builds?
Oh is that how a forum works?Scroll up and read.
Oh is that how a forum works?
I believe the LPR used to be, yes. But KAC moved their barrel production in-house... the man who works for KAC rifling their barrels is a member here, his handle is @__JR__Kac match is Krieger
Nice let us know how it shoots. Are you going to be using factory ammo or handloads ?I just got my 20” varmint upper in the mail today. 10day turn around on an upper that was back ordered and quoted at a month out! So far I’m in love, now to mount some glass and see what it can do!
Probably a bit of both, and I will! I still need a few odds and ends before she makes her debut (arca plate, muzzle brake, etc.) Admittedly I settled on glass because what I wanted was back ordered ?. Monday I should have glass and a mount waiting for me at the post office ?.Nice let us know how it shoots. Are you going to be using factory ammo or handloads ?
....the guys winning are using Johns barrels.
They use Krieger blanks and John chambers every barrel himself.
@natdscott Thank you very much for taking the time to share that knowledge. A couple more questions if you have time:
1. What is causing the rounds to deviate more at 600 compared to short range (is it erratic velocity due to throat erosion) ? We know that a load that doesn’t do well at 100 does not “go to sleep” and do better at longer ranges. But the opposite does not appear to be true.
2. Is a Kreiger/Bartlein still experiencing some velocity loss over the course of those 4000+ rounds, as in is one’s elevation dope increasing during that time?
The reason I ask is because I had a Bartlein .224V barrel stop grouping consistently between 3000 -3600 rounds. It lost only 30 FPS at the end and velocity SD’s weren’t any higher than before.
So. WOA or JP?
1) Well, that's a huge debate. I'm not an authority, but my opinion is that it can vary in causation. It is a well known fact that lands that wash out unevenly do pretty terrible things to accuracy. Some of that may be why Tubb used to mark the "high side" of concentricity, and always chamber his rounds with that aligned UP in the rifle. Harder to do with an AR.
If you have velocities that begin erring widely, the barrel will be in and out of tune from shot to shot. You can't really tune one into tight groups that is +/- 50 fps, regardless of the cause of that range of speed.
It is also 100% accepted that firecracking does nothing good for jackets, but that is inconclusive how much effect it has early on. The SIDES of the bullet get torn all to hell anyway. **But it is equally true, especially with stainless, that if you push it to the breaking point..the barrel will literally begin shredding jackets, spitting out pieces of barrel steel, and losing elevation 1/2 minute at a time. They can also cause bullets to poof, if you're near that point anyway.
2) I can't speak directly for the Valkyrie, not owning one, but I would pretty strongly suggest that you got everything you could get from that barrel. That's a lot, for the type of round it is... WELL within the range of death, I'd guess.
The issues with Stainless vs Chromemoly are directly opposed.
--Stainless is softer, may not last as long at "acceptable" accuracy, but is easier to make into extremely precise barrels. It can also see issues with stress at cold temperatures, particularly in very light contours. It firecracks like a sonnavabitch, and when it dies, it dies a horrible, agonizing death, very acutely.
--4140 and 4150 CM, or especially the Vandadium versions, are relativity very hard steel. They are a little tougher to machine, but can be made into excellent barrels that resist wear and temperature better than stainless. Due to tensile strength and metallurgical difference, they can be machined to minimum "featherweight" contours, for weights SS cannot safely reach. CM will hold accuracy longer, and doesn't firecrack much (it just washes away)...but the trouble for target shooting is that it will go 0.7.. .8... .9... 1.0 MOA... gradually. The astute shooter with good round count records, multiple rifles, and the confidence to know his/her hold and scores...well that's no problem to recognize-and-replace. But the new kid on the block may not have confidence to diagnose it until it's washed out to 1.5 MOA POTENTIAL at 600 yards.
Pay your money, take your chance. Being that I know very closely how a tuned rifle should shoot with me behind it, I prefer CM barrels.
Whichever suits you. The confidence matters more than the brand.
Have you ever tried moly bullets with a CM barrel? Boots Obermeyer has said moly coated bullets will significantly extend barrel life for chrome moly..1) Well, that's a huge debate. I'm not an authority, but my opinion is that it can vary in causation. It is a well known fact that lands that wash out unevenly do pretty terrible things to accuracy. Some of that may be why Tubb used to mark the "high side" of concentricity, and always chamber his rounds with that aligned UP in the rifle. Harder to do with an AR.
If you have velocities that begin erring widely, the barrel will be in and out of tune from shot to shot. You can't really tune one into tight groups that is +/- 50 fps, regardless of the cause of that range of speed.
It is also 100% accepted that firecracking does nothing good for jackets, but that is inconclusive how much effect it has early on. The SIDES of the bullet get torn all to hell anyway. **But it is equally true, especially with stainless, that if you push it to the breaking point..the barrel will literally begin shredding jackets, spitting out pieces of barrel steel, and losing elevation 1/2 minute at a time. They can also cause bullets to poof, if you're near that point anyway.
2) I can't speak directly for the Valkyrie, not owning one, but I would pretty strongly suggest that you got everything you could get from that barrel. That's a lot, for the type of round it is... WELL within the range of death, I'd guess.
The issues with Stainless vs Chromemoly are directly opposed.
--Stainless is softer, may not last as long at "acceptable" accuracy, but is easier to make into extremely precise barrels. It can also see issues with stress at cold temperatures, particularly in very light contours. It firecracks like a sonnavabitch, and when it dies, it dies a horrible, agonizing death, very acutely.
--4140 and 4150 CM, or especially the Vandadium versions, are relativity very hard steel. They are a little tougher to machine, but can be made into excellent barrels that resist wear and temperature better than stainless. Due to tensile strength and metallurgical difference, they can be machined to minimum "featherweight" contours, for weights SS cannot safely reach. CM will hold accuracy longer, and doesn't firecrack much (it just washes away)...but the trouble for target shooting is that it will go 0.7.. .8... .9... 1.0 MOA... gradually. The astute shooter with good round count records, multiple rifles, and the confidence to know his/her hold and scores...well that's no problem to recognize-and-replace. But the new kid on the block may not have confidence to diagnose it until it's washed out to 1.5 MOA POTENTIAL at 600 yards.
Pay your money, take your chance. Being that I know very closely how a tuned rifle should shoot with me behind it, I prefer CM barrels.
Whichever suits you. The confidence matters more than the brand.
Have you ever tried moly bullets with a CM barrel? Boots Obermeyer has said moly coated bullets will significantly extend barrel life for chrome moly..
I found that same sale.... it was a great deal! The barrel I wound up with, after a bit of load development, is pretty consistent around 3/8 with ME behind it. Almost everything shoots 1/2-3/4.I snagged a WOA 18" 1 in 7" SPR w/rifle length gas in late 2018 from Brownell's for $200 plus NC State Sales Theft when it was on sale and used a discount code. The barrel shoots 77gr amazingly well! For the $$$ I stole that barrel.![]()
This is what I use and don't have a problem. I think mine is Midwest Industries.One more question for guys with the white oak barrel.
I'm thinking of just using a regular low pro gas block such as aero or brownells. I'm not planning on running suppressed so don't think I need an adjustable.
Would a standard lowpro block from any of the usual brands be suffice?
How many are running a non adjustable gas block with their 18" rifle length gas system?
ISRA range.... one of the few things I miss from living in Illinois.Sorry that was 20 five shot groups! Using a 6x24 power Vortex scope, front rest and rear bag off of a bench rest. I shot a lot at the ISRA range in Illinois.
Uh. What did I miss?almost any dried hard wood could be really nice I just love the cocobolo for the color and the iron wood for a fine look it can give
nice examples of some different and not so different woods and there are many many more that are just stunning to look at .
But there isn't many I don't like the look of good luck on what ever wood you go with .![]()
Wood by species
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I'll let you know in bout 2 weeks ,that's exactly what I'm going to be using for my white oak barrel.Would a WOA and a basic Aero Precision upper make a decent precision upper? I have $500-700 to spend.
I'll let you know in bout 2 weeks ,that's exactly what I'm going to be using for my white oak barrel.
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Will do man. I have all my parts except for the barrel I'm going to order it next Friday (payday lol )awesome! Let me know! I want to do this bad!!! Update here and tag me!
I’ve got $1000 to play. So 700 for an upper and $300 for a cheap scope.Will do man. I have all my parts except for the barrel I'm going to order it next Friday (payday lol )
Would a WOA and a basic Aero Precision upper make a decent precision upper? I have $500-700 to spend.
That is what i used. I bonded the upper and barrel with green locktite. It shoots great. You should be quite pleased.I'll let you know in bout 2 weeks ,that's exactly what I'm going to be using for my white oak barrel.
Would a WOA and a basic Aero Precision upper make a decent precision upper? I have $500-700 to spend.