Windham Weaponry SRC 7.62x39

I was quite impressed with mine as well, it has never yet failed me, I put a Bushnell 6x18 scope on it and plink away at 100yds with no problem at all. I think they are one of the better AR's out there at the moment.
 
No failure to feed or eject with the Questar 10 rd mags, but I did have 3 light primer strikes out of 40 rounds. Fired those 3 rounds again and they went off. I'm thinking I need a slightly heavier hammer spring or try some different ammo. XP hammer spring ordered.
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A buddy has a Windham and it needed a mod to the firing pin to ensure reliable ignition. He took about .010" off the "front" of the collar on the firing pin to get enough protrusion.
 
EHG said:
I need to look into that. I can easily do that that mod.
What is the original thickness of the collar, so I know if it's been done or not.
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No idea. If it's new rifle with ignition issues I'd be surprised if it's been done.

You may be able to purchase a modded pin from Brownells. There's a number of companies in the US that make one.
 
I don't think I need a firing pin mod just yet. Will try an XP Wolf hammer spring and if all else fails an extra firing pin to experiment on.
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The Wolff XP is going to work. Used it on 2 different x39 AR's. It's a necessary mod for Romanian surplus.
 
EHG said:
Back on the range today, updated with trigger job, Magpul MOE grip and trigger guard. Much better. Fired another 60 rounds with only 2 misfires this time.

After I got home and cleaned her up I decided to rework an old NEA brake 1/2 x 28 made for 5.56. Opened her up on the lathe and cut 5/8 x24 threads, turned it around and bored out the muzzle end to accommodate .30 cal bullets. What I found when I bored it out for .30 was that the brake chambers were oversize in the bore for a 5.56, but seem to be more in spec for a .30. Now I know why it didn't have much effect on my old Norc 5.56. Will try it again at the range and see if this brake actually works.
BTW, I measured the bore when I took off the Birdcage FS and it miked .310".

Fired some groups @ 100yds. Here's the best one @ 2.75 " for 10 rounds of Romanian surplus. Was quite pleased with that for surplus and a Red Dot.

IMG_0315.jpg
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Are the misfires light strikes on the primer?
 
EHG said:
My Windham showed up and went to the range to zero it.
Had just enough time to zero @ 25 yds with the Razor Red Dot I had on hand and fired 40 rds of Romanian surplus.

First impressions, very nice finish on the entire rifle, trigger is very good out of the box. Crisp @ 7 lbs. After a good cleanup I did a trigger job and got it down to 4 lbs. I'm happy with that.
After figuring out it was hitting 3 feet low I got on paper finally and shot a couple of 3 round 1" groups @ 50 yds and had to leave the range. It looks like 2 MOA at least. I can live with that.
No failure to feed or eject with the Questar 10 rd mags, but I did have 3 light primer strikes out of 40 rounds. Fired those 3 rounds again and they went off. I'm thinking I need a slightly heavier hammer spring or try some different ammo. XP hammer spring ordered.

Will change out the stock and rail eventually as I can see this gun is a keeper. Magpul MOE grip on it now and feels right.

What have you guys done with the gas block picatinny sight? Cut it down to low profile or order a low pro gas block to mount your free float rail?
I'm going with a 15" Alpha rail most likely. Gun is sweet to shoot and will post pics later.
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When my WW-15/47 arrived and I took it to the range I had 20% fail to fire rate with Norc. being a little better but Romanian absolutely atrocious, checked the firing pin and sure enough it was a standard 5.56 pin, contacted WW and they sent me enhanced pin right away. That resolved firing issues on Norinco but Romanian was still about 5% fail so I went back to WW and they have sent me XP hammer spring. I'm now at 100% firing rate but that XP resulted (predictably) in heavier trigger. Is there anything that can be done to reduce the trigger pull ? I didn't measure it but compared to my other guns, it is heavy but at the same time that XP spring is a must in that rifle. Ideas ???
 
IMR4320 said:
When my WW-15/47 arrived and I took it to the range I had 20% fail to fire rate with Norc. being a little better but Romanian absolutely atrocious, checked the firing pin and sure enough it was a standard 5.56 pin, contacted WW and they sent me enhanced pin right away. That resolved firing issues on Norinco but Romanian was still about 5% fail so I went back to WW and they have sent me XP hammer spring. I'm now at 100% firing rate but that XP resulted (predictably) in heavier trigger. Is there anything that can be done to reduce the trigger pull ? I didn't measure it but compared to my other guns, it is heavy but at the same time that XP spring is a must in that rifle. Ideas ???
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That is my fear with the XP spring. Seems like the best scenario is not using Romanian surplus
 
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