Wow, very impressed with this 7.62x39 AR15 barrel

I am constantly fiddling with my AR's changing barrels looking for the next thing. My favorite is my 16" 7.62x39 side charging build, which I was using a Delta Team Tactical 16" barrel. When I got the barrel they sent me the wrong one. I ordered a medium profile barrel but they sent me a bull barrel. I sent them an email letting them know but the one I wanted was out of stock so I put it together anyway with the bull barrel. That barrel has been working great and shot 2 moa with wolf ammo but it is really heavy.

Well recently I was on there site ordering a BCG for a 9mm build and saw they had the barrel I originally wanted in stock so I ordered it.

https://www.deltateamtactical.com/Famous-No-Fail-16-762X39-AR15-Melonite-Hbar-Barrel_p_4056.html

Barrel came in today so I swapped it out after work. Just looking down the barrel the bore looks absolutely awful. The chamber was nicely centered and the throat cut nicely, but there was so much burs and tooling marks in the barrel it looked like they had rifled a sewer pipe. It would tear all the lint off a cotton patch run down the barrel. So I got out some lapping compound, covered a patch with it and ran it through the bore to smooth it out. It polished out nicely in just like 20 strokes or so but still has alot of tooling marks on the lands. Here it is on my upper. It weighs 32.5 ounces on my scale and the old one was 37.5



I shot one round just to check the gas setting, no adjustment needed. Then 4 more over the chrono. 2430 fps average with wolf MC 124 gr HP's.

Took it out to the bench to shoot it, and here is the first group at 100 yards. The round above the target was the first shot. I adjusted down 2 minutes and right .5 minutes and shot 4 more. Group measures .70" center to center.



Next group I adjusted up .5 minutes. Group measures exactly 1" center to center.



One last group to verify. I know you'll think this sounds like I'm making it up but I pulled the last shop high because I had a wood tick crawling on my face. It measures .9" without the pulled shot and 1.5" with it.



I am absolutely thrilled with the accuracy from this barrel considering I'm shooting steel case wolf ammo I paid $4.20 a box for. I did have one round that had a bolt over base failure to feed, whereas I have never had one single malfunction of any kind with the old one. When I was putting it together I noticed this has the normal feed ramps for a 223 barrel extension instead of the oversize feed ramps that work best in 7.62 barrel.

New barrel on the left, old one on the right.



I didn't want to mess with a brand new barrel before I knew if it shot or not, but after shooting it I took the barrel back out of the upper and opened up the feed ramps to roughly match the old barrel



So anyway I am ecstatic how this barrel is shooting and I'm thinking of ordering another just to put on the shelf.

Coal Dragger said:

So looks like a sewer pipe inside until you lapped it a bit, has incorrect feed ramps on the barrel extension you elected to bubba into submission via Dremel tool, and has induced feeding malfunctions. Plus it’s an absolute pig weight wise.

At least it makes bullets go where you want them to when it is working. Glad you’re happy with it, personally I’d send it back but that’s not an option now.

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Correction, it had one failure to feed before I bubba the feed ramps into submission via carbide die grinder and none sense. I waited to see how it shot before doing that. And it’s not pig heavy, with there respective muzzle devices it’s the same weight as the fluted 20” BA barrel on my matching 223 upper which is what I wanted. If you have any sub moa barrels you would like to dispose of due to there ugly bores I would be happy to rid you of them lol.

Sometimes in life you have to take a chance and give something the benefit of the doubt. My 30-40 Krag bore looks terrible down the bore and is egg shaped and oversized, but it still shoots near moa. I don’t argue with results.

CarJunkieLS1 said:

I myself got a x39 AR-15. I got an AR Stoner upper for a STEAL from midway 179.99 due to pricing error. They honored it

I got it for basic cheap plinking but I was impressed with accuracy using Wolf ammo so I decided to hand load for it to see what it would do. With CFE BLK and a 135 FTX is a legitimate sub MOA shooter and the Federal Fusion factor load is MOA or slightly larger.

I feel like I got a STEAL on this one. I've been offered $350 for the upper. I refuse to sell it because if I have to replace it there is a snowball's chance in Hades it will shoot this good. Looks we are very happy with our x39's

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Yep this is one of my favorite guns. I was happy when it was a 2 moa gun with commie ammo, but 1 moa is nuts!

kimberkid said:

What mags do you guys use?

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I only have 2 c-products 10 round mags. I’ll probably get another couple sometime but no desire for anything bigger. I have about 500 rounds through the gun since I put it together and the 1 FTF I had with this barrel is the only malfunction I’ve had with it. I also have never cleaned it except to run some patches down the bore.

You could never get a 7.62x39 in a grendel chamber due to the neck size. This is only a problem with 5.56 and 300 blackout because the case is shortened, allowing a 300 blackout to headspace on the bullet if crammed in a 5.56 chamber.