Dominion Arms Socom Bolt continually comes apart.

Gillen1

Gillen1

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So a month or so ago I took a Dominion Arms Socom M305/M14 in on trade.

The bolt constantly disassembles itself at seemingly random times. And by this I mean it shoots the extractor out and into the grass in front of me along with the bolt internals.

I have replaced the springs and extractor with USGI parts and the problem still persists.

I have made sure that the extractor stem/arm part does not protrude from the bottom of the bolt, I have gone so far to file it down so that there is a gap between the bottom of the stem and bottom of the bolt. I have also slightly enlarged by drilling the area where the extractor spring and plunger sit into the extractor to ensure a solid fit.

Now it has happened aprox 6-7 times, and I have lost quite a few parts in the process of my trials of fixing it. I have only seen the extractor fly out twice. The other times I go to fire and can't due to the fact that a round is in the chamber and the firing pin is rattling around in the receiver.

Now on those two times I have seen it fly out, it has come out right when I am loading a new mag and releasing the op rod and it is stripping the first round.

I have run out of ideas on what could be causing this. It is the original serial number matching bolt to the rifle. Is this bolt just out of spec? Would a new Norc or USGI bolt help?

Here is an album of pics: https://imgur.com/a/iYjt0

If anyone has any insight that would be great!
 
This is generally a magazine issue, but it can also be caused by a bolt with the extractor cut-out cut overly large or a bolt that is under cut on the right bolt lug.

This only happens with the RH round in the magazine. The round is able to get under the extractor, due to an out of spec magazine or an out of spec bolt. As the round chambers it causes the case to become a fulcrum and it applies quite a bit of pressure to the bottom of the extractor and it just pops right out.

The easiest way to test this out is to source a bunch of magazines that are known good and try it on the bench with inert shells. Snap caps will bend.

Hope this helps ya a bit. On the plus side, you are probably getting pretty darn good at assembling a stripped bolt!

John
 
Thanks for the tips John,

I made up 5 dummy rounds, as previously I was only using snap caps. I ran the dummy rounds through all 6 magazines I have and the extractor popped out in only one of them. After I put the bolt back together I tested the mag again and the extractor did not pop out. Either way I will segregate that mag and hope to see an improvement.

The only difference between that mag and my others was that there was a slight bit of sloping inwards on the rear of the follower. The other magazines seemed to be flatter in that area.

either way I put a scope base on the rifle that it came with as I hope it will deflect the ejector sideways instead of forwards. Tired of chasing after it.

And yes I can get a bolt together pretty quick these days.
 
In any event, this is the excuse you need to order an LRB or USGI bolt and some GI checkmate industries mags from wolverine.

Definitely would make your issues go away. While at it, consider getting a garand hammer and trigger. ;)
 
I have been thinking of it. And speaking of the hammer and trigger. This rifle has a pretty good trigger already, and the safety is as smooth as my IHC garand. I'll get the rifle 100% fu cation all before I worry about the trigger.



Claven2 said:
In any event, this is the excuse you need to order an LRB or USGI bolt and some GI checkmate industries mags from wolverine.

Definitely would make your issues go away. While at it, consider getting a garand hammer and trigger. ;)
Click to expand...
 
Just an update to this thread.

Upon further inspection of the bolt, I did notice some drag marks and small dings on the very bottom edge of my USGI extractor (norinco one was lost in grass on my first trip out). To me it looked like the extractor was probably hitting the top edge of the magazine. So I disassembled my bolt (I can put it together almost as fast as I can take it apart now) and took a small fine file to the extractors bottom edge. I removed a small bit of material and returned to the range to test it again. I was amazed when I got through every magazine I own with zero issue!

So I'm happy to say that it appears to be all solved now and I only hope my next range trip is as successful.
 
This is a know problem/fix. Sometimes the tolerances just stack up and the bottom of the extractor stem slightly protrudes out of the bolt body and causes your problem. The bottom of the extractor should be flush with the bolt body or slightly recessed. Removing a small amount of material from the extractor, as you did, is the correct fix.
 
I did not remove metal from the extractor stem, but from the claw part of the extractor. I tried removing material from the stem and it never fixed the issue. It seemed that the claw part was hitting the magazine lip. Either way the issue is fixed.




RifleDude said:
This is a know problem/fix. Sometimes the tolerances just stack up and the bottom of the extractor stem slightly protrudes out of the bolt body and causes your problem. The bottom of the extractor should be flush with the bolt body or slightly recessed. Removing a small amount of material from the extractor, as you did, is the correct fix.
Click to expand...
 
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