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Coup De Grâce, New Action from American Rifle Company, $899 WOW!

what did you do to the AICS mags? receive the back so of the mag wall a little? love to see some pics. I have the same recipe as your pic. foundation with M5 metal and the stupid AICS mags are not loving life at all.
I thought I posted this early last year, but you caught me fitting another this morning.

First I give it clearance for the back of the CDG receiver. Then using a safe edge file, take a few thousands off latch catch until the bolt doesn’t drag on the feed lips.

They still run great in my AW cut & standard AICS Impacts also. Almost all my comp guns are in Foundations with Hawkins M5 DBM with their standard mag latch.

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I thought I posted this early last year, but you caught me fitting another this morning.

First I give it clearance for the back of the CDG receiver. Then using a safe edge file, take a few thousands off latch catch until the bolt doesn’t drag on the feed lips.

They still run great in my AW cut & standard AICS Impacts also. Almost all my comp guns are in Foundations with Hawkins M5 DBM with their standard mag latch.

View attachment 8340689View attachment 8340690

this was literally my plan of attack.. thanks for the info! not sure why we cant get adjustable mag latches for M5 bottom metals. MDT makes one but its backorder for no acceptable reason.

are you running the mag stop in the front receiver bolt?
 
Ok folks, time for a technical support question…

I received the bolt parts kit to replace the extractor for two of my actions. I put it in at the same time I replaced the trigger with a Huber 700 trigger group.

I am now getting light strikes.

In fact, I’m at the range right now. Wondering what the heck is going on…

No debris in the bolt, everything is clean, and it would seem that the firing pin is coming out like it should…

What causes this?

The trigger appears to work just fine and feels like butter.

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Perhaps I didn’t lock it down properly?

That wouldn’t be the first time I did something stupid…

Shouldn’t matter, but the safety doesn’t engage due to the manner and how the trigger hanger is configured… and I didn’t really give a crap because I never use a safety. (the bolt is either out of the gun or in the rear possession… and I don’t hunt with this rifle.)
 
Would the XLR Element 4.0 magnesium chassis need modification for the ARC Coup De Grace action? Also, how does the CDG action compare to other companies?
All you need to do is trim the rear action screw, it sticks out a little far and doesn’t allow the bolt to cycle. 2 minute job on a bench grinder. And adjust the mag latch another 2 minute job. Done.
 
By the way, for what it’s worth, it does not appear to be moving forward… obviously it moves forward when I pull the trigger

what procedure did you use to adjust the hanger? that front hanger point setscrew is an absolute bitch so it may have not actually adjusted anything and may have thought you did. those threads are cut VERY tight.
 
Got the rifle home… swapped out the original extractor and bolt parts… pulled the bullet from a case, and put an empty case in the barrel:

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With the original extractor configuration it fires without issue…

No idea what is causing problems… but it may be assumed that the new extractor is hitting the conical breach somehow. ???
 
Got the rifle home… swapped out the original extractor and bolt parts… pulled the bullet from a case, and put an empty case in the barrel:

View attachment 8341151

With the original extractor configuration it fires without issue…

No idea what is causing problems… but it may be assumed that the new extractor is hitting the conical breach somehow. ???
I don't think it's the extractor, but to check for rubbing put some sharpe ink on the face of the extractor and repeat. If it's rubbing the breech, you'll see some ink removed.
 
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Got the rifle home… swapped out the original extractor and bolt parts… pulled the bullet from a case, and put an empty case in the barrel:

View attachment 8341151

With the original extractor configuration it fires without issue…

No idea what is causing problems… but it may be assumed that the new extractor is hitting the conical breach somehow. ???
Yep check right here for the new extractor rubbing.
My original just touches & I haven't put the replacement in.

Read on here somewhere about the new replacement hitting the cone breach that was set up for the original extractor.
The ARC firing pins fit tight, so a little misalignment may well cause the pin to bind.
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question:Is it possible to put the new pin for the pin/spring/extractor retrofit in backwards?

I note one side is beveled and the other is flat….
My recollection is that the flat side faces the spring and the tapered end goes toward the extractor.

All - anybody recollect why he changed the ejector?

Also, has there been any change to his barrel tenon specs for this extractor change or it’s the same???

Also, also (lol), has anybody taken a file to lightly take off that sharp corner or would that be very unadvisable???

I have a CDG SA sitting in a box and it has the new extractor. Going to send a blank out for chambering soon and wondering if this is a wide spread issue.

Also, please note that @GBMaryland has been shooting this gun for a good while without problem until the extractor change. This sort of precludes some of the suggested problem sources.

Cheers.
 
Just to stir the pot Reddit lore says these things had issues at Mammoth, multiple shooters’ CDGs went down.

I haven’t changed triggers recently but did replace the extractor. If I can get out to the range I’ll check my main CDG.
 
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Yep check right here for the new extractor rubbing.
My original just touches & I haven't put the replacement in.

Read on here somewhere about the new replacement hitting the cone breach that was set up for the original extractor.
The ARC firing pins fit tight, so a little misalignment may well cause the pin to bind.
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So I do have a little bit of rubbing going on according to my pictures…

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The pictures don’t do it justice because it’s a very little bit when you’re looking at it with your eyeball… But the camera seems to make it look much larger than it is.

For what it’s worth: PVA finished the barrel for me, and it’s one of their Osprey barrels.
 
Just to stir the pot Reddit lore says these things had issues at Mammoth, multiple shooters’ CDGs went down.

I haven’t changed triggers recently but did replace the extractor. If I can get out to the range I’ll check my main CDG.
This is not news I wanted to hear…the more I hear the more I think I may just sell mine when I get it.
 
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So I do have a little bit of rubbing going on according to my pictures…

View attachment 8341268View attachment 8341269

The pictures don’t do it justice because it’s a very little bit when you’re looking at it with your eyeball… But the camera seems to make it look much larger than it is.

For what it’s worth: PVA finished the barrel for me, and it’s one of their Osprey barrels.
Those pics of the old extractor...so its black...or is it the new one which is silver??? Hard to tell from the pics.

And, I'm not sure what it hitting a bit on would do to firing pin freedom of travel or headspace. Did you have resistance when closing the bolt with the new part? I ask because the in battery should be fully in battery...no?
 
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If thats the only place its rubbing, 5 seconds to break the edge on the extractor with a file.

Dimensionally , the extractor should be the same with the exception being the notch for the dowel pin. And, as noted earlier in this thread, I think the extractor popped out with some people running magnum calibers.

I posted photos of the extractors earlier in this thread.
 
So I do have a little bit of rubbing going on according to my pictures…

View attachment 8341268View attachment 8341269

The pictures don’t do it justice because it’s a very little bit when you’re looking at it with your eyeball… But the camera seems to make it look much larger than it is.

For what it’s worth: PVA finished the barrel for me, and it’s one of their Osprey barrels.
Mine is also a PVA Osprey.
From your Picture I now suspect the new extractor was forcing the case head over & up off the bolt face.
Edit: I see brass @ that location in your second pic.
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Mine is also a PVA Osprey.
From your Picture I now suspect the new extractor was forcing the case head over & up off the bolt face.
Edit: I see brass @ that location in your second pic.
View attachment 8341283
Interestingly, that bolt says 473B on it, and my other one is a 473.

There is a slight difference with how that piece of steel was machined between the two.

I have figured out what the problem is and the problem is is that one of the two extractor they sent me says 378 on it:

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Interestingly, that bolt says 473B on it, and my other one is a 473.

There is a slight difference with how that piece of steel was machined between the two.

I have figured out what the problem is and the problem is is that one of the two extractor they sent me says 378 on it:

View attachment 8341323
That would explain it!
Glad you figured it out.
 
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Per e mail from ARC regarding the orientation of the pin behind the extractor. The tapered end of the pin should face the spring. As mentioned in post 6366.
ooops, wrong again. Its my super power.

All - here it is and I just got it backwards...it makes sense that tapered end would go into the spring.

 
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I don't think it's the extractor, but to check for rubbing put some sharpe ink on the face of the extractor and repeat. If it's rubbing the breech, you'll see some ink removed.

if he can still lock the bolt and that extractor isn't stopping it then id be concerned on what headspace he's got and how much conical breach space he's got. from the other posts ive seen rubbing marks at least. I haven't swapped mine out yet.. havnt gotten the time to cut the barrels yet.

let me rephrase.- if the update extractor is pushing his bolt back enough to cause light striker hits. and fires fine with the OE extractor, I would be concerned on the breach geometry.
 
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