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Ejection problem today and the fix

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14 years 5 months ago - 14 years 5 months ago #4456 by augiedog40
Ejection problem today and the fix was created by augiedog40
Hi all,

I just joined up yesterday but have something to share and hope it is helpful to anyone with this problem.
I went to the range today for the 3rd time with my new Armalite AR-10TBNF in .338 Federal with 24" barrel. I have cleaned rifle before use and start to fire. After a few rounds it starts to short cycle. Then see that the bolt/extractor is holding on to case then jams next round. Took rifle apart and did what I could at the range...no fix.
At home I remove the bolt and after some tinkering I find that the ejector pin is locked in the out position. I am thankful that the pin was jammed in the out position otherwise I don't know how I would have been able to remove it. After a bunch of tapping the bolt assembly down on my anvil several times I was able to get hold of the pin and pull it out.....I WAS SHOCKED ! The ejector spring and hole behind the pin were full of brass shavings ! These little devils locked the pin and spring up hard !. I cleaned everything and put the pin and spring back together along with the rest of the bolt assembly and rifle. Without firing I ejected several rounds..FIXED !!
Has anyone else had this problem ? Is it the ammo ? Or is it just because the rifle is brand new and not broken in ?
Last edit: 14 years 5 months ago by augiedog40.

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14 years 5 months ago #4457 by a Guest
Replied by a Guest on topic Re:Ejection problem today and the fix
This is getting more common. I have often thought that this is cost driven by shortening tumbling time. Take it apart and use a cone shape diamond burr on the hole face finger driven until it breaks the edge and this should stop the shaving of brass.MSH

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14 years 5 months ago #4458 by Laughing Elk
Replied by Laughing Elk on topic Re:Ejection problem today and the fix
Hey MSH! Just a thought but the 338 is only factory loaded by Federal. Their brass tends to be soft and may be a contributing factor as well, wouldn't it?
Elk

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14 years 5 months ago #4460 by augiedog40
Replied by augiedog40 on topic Re:Ejection problem today and the fix
The Gunsmith,

Thanks for the information. I'm almost afraid to mess around burring ! How much is enoungh ? I wish I could see a bolt after it has been burred....that way I could try to copy.

Thanks Again,

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14 years 5 months ago #4461 by a Guest
Replied by a Guest on topic Re:Ejection problem today and the fix
Just finger twist one of those cone shaped burrs to break the edge thats all.MSH

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14 years 5 months ago - 14 years 4 months ago #4462 by lotoofla
Replied by lotoofla on topic Re:Ejection problem today and the fix
:cheer: Yes there is an answer. what it is that the head of the ejector is sharp, and every time the rifle fires it scrapes a little bit of brass from the case each time (look at the bottom of your fired cases for a scratch) and the brass chips gets sucked into the ejector hole with the next case. The head of the ejector should look a little convex (like a bubble mirror) and the edges should be round like an unfired primer. the home fix is to put the ejector pin in an elctric drill and a fine file and recontour the ejector, the use sand paper or emery paper to polish it so that it slide s-m-o-o-t-h-l-y. I read that your rifle is brand new. Go to ArmaLites web site and look for warranty/customer service, Armalite will fix it for FREE!!Tom
Last edit: 14 years 4 months ago by lotoofla.

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14 years 5 months ago #4471 by augiedog40
Replied by augiedog40 on topic Re:Ejection problem today and the fix
Hey Tom,

Thanks....I will contact Armalite to see what they have to say. If others have been getting the fix through them for FREE (I am the original owner) then that's the route I'd like to go. If they say the turn-time is in months...then I'm not so sure !

Bruce

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