Scratched brass

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12 years 7 months ago #11097 by LR-260H
Scratched brass was created by LR-260H
New guy needs some help here. I just recieved my LR-260H ( DPMS) and I neck down military surplus .308 brass. All seems to work fine but all fired brass has 2 scratches on the neck of the brass, about 60 degrees apart. If I chamber a round and then eject with out firing, no scratches. I assume these scratches are from someting during the eject process. It doesn't seem to hurt anything but makes me wonder if this is normal. Has anyone had this happen to them? Thanks in advance for your input.

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12 years 7 months ago - 12 years 7 months ago #11121 by BUILDING MY SASS
Replied by BUILDING MY SASS on topic Re: Scratched brass
You can put your mind at ease....The .308s do the same thing....it happens on my AR-10 all the time....Something to do with when the round is fired and expands in the camber and the violent and quick way it is extracted....or so I have been told by someone with much greater knowledge than my self...so again...not to worry unless it is caving in the neck...then you have an issue...
BMS

Something like these...look closely at the necks...

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Last edit: 12 years 7 months ago by BUILDING MY SASS.

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12 years 7 months ago #11122 by 13fcolt
Replied by 13fcolt on topic Re: Scratched brass
Try chambering fired brass and cycle the action slow. You should see whats happening, as the ejector pushes the case outward against the locking lugs in the barrel extension. Loaded ammo confuses the issue because the bullet holds the case off the lugs, and is usually the part to get the scratching. Either way, it's a non issue.

I have heard of over gassed rifles cycling fast enough that the condition resulted in dents, even to the point of cutting holes in the neck/shoulder area, ruining the brass. That would be a cause of concern.

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12 years 7 months ago #11125 by LR-260H
Replied by LR-260H on topic Re: Scratched brass
Thanks to both of you. I will stop worrying about it. I had just never seen that before. Thanks again.

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12 years 7 months ago #11160 by Redscout02
Replied by Redscout02 on topic Re: Scratched brass
Ok time for the dumd question, why are necking down .308 rounds?

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12 years 7 months ago #11163 by 13fcolt
Replied by 13fcolt on topic Re: Scratched brass

Redscout02 wrote: Ok time for the dumd question, why are necking down .308 rounds?


I'd go out on a limb and guess that LR-260H is shooting .260rem out of his LR-260H?
:whistle:

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12 years 7 months ago #11170 by Redscout02
Replied by Redscout02 on topic Re: Scratched brass
Oh see there I knew I would ask a dumd queston!! He didn't what he was necking down to so I just wanted to know.

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12 years 7 months ago #11173 by 13fcolt
Replied by 13fcolt on topic Re: Scratched brass
It's all good, I thought it was hilarious. I LOL'ed.

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12 years 7 months ago #11177 by LR-260H
Replied by LR-260H on topic Re: Scratched brass
Yup you guessed right. I have buckets of .308 and decided to make .260 Rem .

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