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7/6/2010 12:25:44 PM EDT
My friend and I went to the range this weekend and we noticed a weird case ejection issue with his rifle. The shells are ejected almost straight back and seem to be hitting the very front edge of the shell deflector nearest the ejection port. The cases have a strong straight perpendicular indentation where it's pretty much creased. We have almost identical rifles except for a few key parts and furniture. We swapped buffers and that didn't change the indentations on the cases. Then we swapped bolts and that made the indentations almost non existant. There were light marks but they were no longer indented. Then we swapped extractors and my extractor on his bolt actually made the indentations worse than originally.

Any ideas?

His rifle:
Denny's Guns lower receiver
BCM 16" standard mid length upper
BCM H3 carbine buffer
"Old" Denny's Guns Super Duty BCG

My rifle
Denny's Guns lower receiver
BCM 16" standard mid length upper
BCM standard carbine buffer
BCM BCG (without SOPMOD upgrade)


7/6/2010 1:12:17 PM EDT
[#1]
Spent hulls off the defector means the defector is doing it job, and all is normal.

If you want to save the brass from being deflector kissed, then either pad the defector (sticky back Velcro works), or start tuning the ejector spring.
7/7/2010 9:04:29 AM EDT
[#2]
I have a rifle that does the exact same thing.  It's  actually wearing through the anodizing on the forward edge of the deflector, and leaving a small dent in the brass.  I don't worry about it. I am a reloader, and do save the brass, but .223 is one caliber I just haven't gotten around to reloading, yet (it's only a matter of time ).  It doesn't appear to be any sort of a reloading issue, at least not with the brass I've collected.
7/7/2010 9:12:57 AM EDT
[#3]
Thanks Kekoa. I supposed I should have stated a more specific question(s) in my original post. He was concerned about the reloadability of these cases if they were dented and if it does affect reloadability, then what could be done to change the extraction on the rifle.

His rifle extracts at between 3:00 and 4:30 which should be "perfect" but that may be only after hitting the deflector so hard.
7/7/2010 9:25:18 AM EDT
[#4]
Well, I haven't actually tried reloading them, yet, but my gut feeling is that it won't be an issue.  I've seen some pretty beat up cases (other calibers) run through a resizing die, that came out looking fine.  Run  a few cases through the sizing die and see what happens.   I sure wouldn't start "adjusting" a reliable rifle, unless I was absolutely positive that the dented brass was a reloading issue.


Good luck!
8/22/2010 12:24:53 AM EDT
[#5]
I have the same problem as well. My brass ejects at the very front of the deflector nearest to the ejection port. It its is so hard it causes my brass to slightly dent and the brass deflects at 2:00. I'm not worried about using the spent brass again, I'm mainly worried about the gun being overgassed, possibly having malfunction/damaged BCG parts in the future. Does anyone have an answer about this?
8/22/2010 4:33:10 PM EDT
[#6]
You guys are worrying too much about this.  You are both OK.
9/2/2010 9:55:24 AM EDT
[#7]


Cases from Noveske N4 middy.


Properly ejecting rifle does not distort cases like this.
There are guys who promote such ejection pattern, like their cases almost cut in two and edge of deflector peened.













9/2/2010 12:20:32 PM EDT
[#8]
Quoted:
http://i103.photobucket.com/albums/m123/Bulldog257/DSCF0002-5A.jpg

Cases from Noveske N4 middy.


Properly ejecting rifle does not distort cases like this.
There are guys who promote such ejection pattern, like their cases almost cut in two and edge of deflector peened.


Military does not reload, so as long as the spent cases are clearing the action, everything is A-OK.

Now on the other hand, if you do want to reload the spent case, then ejection path tinkering, such a clipping the ejector spring or even playing with the buffer dead blow weights to get a more forward ejection path is not of the question

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