Scratched cases from my 308

Discussion in 'Reloading' started by Team Realtree, Sep 15, 2011.

  1. Team Realtree

    Team Realtree Member

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    Sep 15, 2011
    Bought a DPMS in 308 second hand, had very few shots through it ( the first owner told me). So upon ejection I'm noticing scratches on the body of the casing.
    My first question is: why is this happening? and the second is: when I reload these cases, will this weaken them?

    Thanks
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  2. Kevin Thomas

    Kevin Thomas Well-Known Member

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    Looks like you either have some crud in your chamber, or there's actually tool marks from the reamer that need to be polished out. I've seen similar indentations/scratches caused by detached bristles after cleaning when the chamber wasn't throroughly swabbed out. If they remain after the chamber is definately clean, then it's probably machine marks left during reaming. A quick check with a bore scope should give the answer. If they are tool marks, they may be able to be removed with a light polishing usinf some emory or crocus cloth on a mandral. Leave this one to your gunsmith, unless you're comfortable with this sort of work.
     

  3. scap99

    scap99 Member

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    Aug 8, 2010
    Any chance it's the feed lips from the magazine causing this?


    They don't look deep enough to cause issues with the brass.
     
  4. Team Realtree

    Team Realtree Member

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    I was using Magpul Magazines...

    Thanks
     
  5. Team Realtree

    Team Realtree Member

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    Got some good pics inside the receiver, seems theres some rough metal on the teeth. Hope you can see this.
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  6. Kevin Thomas

    Kevin Thomas Well-Known Member

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    Can't say for sure from the pics, but it looks like you're looking in the right area. If the scratches or marks are consistently the same, same place, etc., it's something in the chamber that needs to be polished out. Not a major problem, and it's easy enough to fix. Keep us posted!