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Old November 04, 2018, 14:37   #1
Ghost
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Coonan L1A1 receiver too soft?

Ok. there were some issues with my Coonan L1A1. basically some fitment issues and no feed ramps machined in. I worked around those issues and got it feeding and ejecting reliably, also takes mags fine, and has no bolt over issues.
However on my last range trip, the L1A1 started having FTE issues.
after I got home I noticed that the ejector has been POLISHED to an angle by the BRASS. its wasn't chipped and the wear is from the brass.
I also noticed that the receiver over the breach where the top of the bolt locks is "smushing" into the shape of the top of the bolt!

Head space is fine at this time.
Also note that this rifle only has a couple hundred rounds through it!
None of my other FALs have ever done this.

Can I weld onto the ejector to build it back up? or do I need to replace the EB entirely? Coonan uses a one part EB with the ejector cast in....always thought it was a stupid idea, for this very reason.

What about the deformation above the breach?
thanks


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Old November 06, 2018, 13:20   #2
Mosin Guy
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Wow that does not look good
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Old November 06, 2018, 13:25   #3
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Ammunition was PPU, and was not acting over gassed.
Any ideas to correct this?
I'm hoping the receiver isnt too soft and a lost cause.
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Old November 06, 2018, 14:12   #4
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Not sure there is any way to fix the ejector without changing out the ejector block as it is one piece and No idea on the receiver being soft but it could be because of a heat treat issue but I'm just guessing on that. I have an Entreprise metric receiver that I built up about ten years back and it does not exhibit these types of problems. I also have an older DSA LMT metric receiver and it also does not exhibit these types of problems and both have well over 2000 rds through them and the ejectors look great with hardly any wear I can see.
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Old November 06, 2018, 14:46   #5
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It's just cast junk. Buy an Imbel and never look back.
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Old November 06, 2018, 22:49   #6
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I'd be deadlining that receiver.
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Old November 07, 2018, 01:19   #7
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I'm thinking the area above the chamber is caused by the bolt contacting on closing. Upward pressure being applied from the loaded mag at just the wrong place in the bolts cycle. the bolt then id forced downward by the carrier just past that point. also on the Coonan receivers the width of that area is shallower muzzle to butt than a real FAL/L1A1, and that is of coarse why there is the Coonan gap.
Having never encountered this before, I'm still up in the air about this being a possible safety concern.

The Ejector block I'm afraid will have to be replaced.
casting it with an integral ejector is such a stupid idea.
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Old November 07, 2018, 09:28   #8
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Instead of "retiring" the receiver, convert the rifle into a .22LR one, like they do with the Williams "alumbombs" or Hesse. It might take a while to find the parts but it would be better than losing the rifle entirely.

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Old November 07, 2018, 20:02   #9
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How old is this receiver?
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Old November 07, 2018, 20:14   #10
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I’d put in an eblock with 2 piece ejector or just shoot it and do small clearance check and a dremmel. As far as the bolt slamming just another mod for a $300 upper. I doubt you’ll be to worried at a local firefight.
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Old November 07, 2018, 22:25   #11
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Quote:
Originally Posted by skeeterbay View Post
How old is this receiver?
Picked up the receiver March of 2016.
that was after waiting a while for my order to process, order was placed before the negative feed back on these. At the time of the order Coonan had a very good reputation, with the only complaints being the Coonan gap,and they are cast, and I believe some were a tad long.
DSAs had just come out as all being cast, and they stated to me over the phone that they were never going to make another forged receiver.
Nobody else was making a L1A1 receiver, and I really wanted a Brit cut receiver.
Had I waited I probably would have ended up with a DSA Brit cut, and that actually may have been a worse out come.
{Obligatory lamentation over no current production of good receivers}

I'm thinking, a little file work. replace the EB, and keep an eye on it.
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Old November 08, 2018, 08:19   #12
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Old Coonan, best Coonan.
Old DSA, best DSA.
Old Century, best Century.

Shit supposed to get better as time goes by. Not receivers apparently.


I'm curious to see how the quality is on the new DSA Israeli receivers.
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