[ARCHIVED THREAD] - marks on .223 brass

Posted: 12/16/2010 3:37:30 PM EDT

I was at the range today and after I collected my my brass I saw all the scrape marks down the lenght of the brass I was shooting win .223 sorrry dont have the box any more to tell what the weight was I think 55gr.
Iam useing my DTI 16' 1-8 twist HBAR with an OSP 16 gas piston kit standerd buffer and spring. There is some marks I think from carrier tilt but I have nothing to campare to. I will try and get some photos up asap.

Posted: 12/17/2010 3:03:03 PM EDT

[#1]

Piston or DI, AR-15s are hard on brass. That is normal. Nothing wrong with your gun as long as it if functioning fine. Throw them in the tumbler and reload.

Posted: 12/18/2010 5:36:44 PM EDT

[#2]

Carrier tilt causes wear to the buffer tube. Maybe what you are seeing is scratches from the lugs in the barrel extension?

Posted: 12/18/2010 6:19:04 PM EDT

[#3]

Quoted:
Carrier tilt causes wear to the buffer tube. Maybe what you are seeing is scratches from the lugs in the barrel extension?

This was my thought as well.

Posted: 12/29/2010 7:03:46 PM EDT

[#4]

Bear in mind the ejector spring preloads the cartidge case to ride against the right side lugs of the barrel extension as soon as it clears the chamber upon extraction.

[ARCHIVED THREAD] - marks on .223 brass

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[ARCHIVED THREAD] - marks on .223 brass

[ARCHIVED THREAD] - marks on .223 brass