Problems with my new Rock River Arms 458 SOCOM.

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I'm going to keep an eye on this thread to hear what the resolution is from RRA.

As far as optics go, I don't have an Eotech but I do know that the recoil from my SOCOM is too much for the Primary Arms red dot that I tried to use. It took me a half dozen rounds to figure out that the sight was not holding zero.:banghead: The PA sight now sits on my AK, and I have mounted a Nikon 2x7 shotgun scope on the .458.
 
UPS picked picked up my upper on Tuesday. I'm not sure how they handle things, but I hope they call me once they diagnose the issue and give me an estimate on when I should have it back.

I may end up swapping out the Nikon for an Aimpoint before all is said and done. I like magnified optics for hunting, especially in low light, but the Aimpoint PRO would be handier.
 
i do mostly brush hunting and most shots are within 75 yards...which is why i like the socom..a carbine length gun with that much knockdown energy..i fell in love instantly..i plan on mounting my 512 on it since acquiring a target fast is sometimes need..then there will be a flip to side magnifier for those longer difficult shots...1.5 inch group with a 458 bullet is very good in my opinion...especially if thats outside diameter of the group
 
Had a local reloader tell me that the issues with my rifle were brass related. He told me this based only on pictures. He said he would be surprised if Rock River doesn't call me and say that my rifle is fine.

Does anybody here think this is a brass related issue?
 
I say let 'em fix it and evaluate the rifle with a fresh mind when it comes back. It's a manufactured good, as disappointing as it is to have it come from the factory with some issue, these things happen.

Cor-Bon charges too much to have that poor quality control. I can't imagine they'd be caught dead running brass that caused problems like that unless they got an entire lot of bad brass, and then I'd imagine they'd hear about it and try to replace it quickly.
 
Spoke to BJ today. My upper is being shipped back to me tomorrow. They did not find any issues with it. BJ said all they could figure was hard brass. Apparently Corbon had an issue with a batch of hard brass a while back. The ammo I was shooting was pretty old, so this could be my problem. I'm going to try it out when it comes back.
 
Hope it all works out for you. Btw I have a long term plan of building a .458 Socom some day... It would probably be a great hog gun.
 
So are you going to try to get a free box of ammo from Corbon? If they had known issues with the lot your ammo came from I'd hope that they'd send you another box to compensate. You should at least let them know that RRA said that the ammo was the culprit.
 
Received an email from Cor-Bon very early this morning. They are paying the shipping for me to send the ammo, including the spent brass back to them to see if the problem is on their end. At any rate, it sounds like they plan to replace all three boxes.

The ammo I bought was pretty old, 2008, and that may have been part of a bad batch that supposedly came out around them. That is pure Internet speculation and Cor-Bon did not make any mention of a bad lot in their email correspondence.

If the ammo proves to be the issue then I would have to say I am very satisfied by the way both companies handled the situation.
 
Good to hear the problem is getting solved!!!

I'd hold on to a casing (if you have to ship the defective ammo back) just to see where the neck position is - comparing old vs. new.

Still suspicious if it wasn't headspacing then their ammo might have been loaded with a pushed-back shoulder. It'd take something considerably out of spec to expand THAT damn far, far enough to split.
 
Still no word back from Cor-Bon. This is getting a bit ridiculous. Last contact I had with them was over a week ago when I was told to send them an email when I had brass back from Rock River. I emailed them last week to confirm the brass was back in my possession. Still no call tag for me to send the brass to them. I don't care if I get my money back or not at this point. I just want Cor-Bon to confirm or deny that the brass is the issue.
 
No. I haven't tried any other ammo. I wanted to make sure it wasn't an issue with the rifle before I went out and ruined more brass.
 
I wanted to make sure it wasn't an issue with the rifle before I went out and ruined more brass.
Click to expand...

Generally when a new gun is having problems, a different brand of ammo is the first thing you should try before sending anything back.

While I'd quickly get rid of a gun that showed a lot of ammo sensitivity, tolerance stack-up sometimes means some lots of ammo just won't work well with some guns.
 
Wally, I agree to an extent, but splitting brass just isn't acceptable in my eyes no matter the make of the gun or ammo.

Tried it tonight for the first time since I got it back from Rock River. It was a different lot number, but it still split two out of the six cases. This is beginning to get ridiculous. I'm almost to the point of selling the rifle and moving on to something else. If Cor-Bon does not get back to me by tomorrow then I am done with their products for good.
 
Heard back from Cor-Bon this morning. All the ammo and brass is headed back to them in the morning. Sounds like they are going to make this thing right. We'll see.
 
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