Distinctive marks on brass after shot

Discussion in 'Reloading' started by dave1, Nov 19, 2008.

  1. dave1

    dave1 Well-Known Member

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    I noticed on factorys and reloads each brass has 2 distinctive marks on same location ef brass every time. obviously its something with action.opinion's on what would cause this and does it hurt eccuracy? Scratch or just the gun. 7 RUM
    [​IMG]
     
  2. jwp475

    jwp475 Well-Known Member

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    Where exactly are the marks and what do they look like?
     

  3. dave1

    dave1 Well-Known Member

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    One is like a kinda dotted line similer to --- down the shoulder the other one is like a solid scratch just be4 the shoulder. i cant figure out how to post pictures
     
  4. jwp475

    jwp475 Well-Known Member

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    Sounds to me like a rough chamber that needs to be polished out
     
  5. dave1

    dave1 Well-Known Member

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    Meaning rough? its a newer gun but.. that dont mean to much.. how does that go about?
     
  6. jwp475

    jwp475 Well-Known Member

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    Catch a chip with the reamer when removing it and you have a scratched chamber, simple as that
     
  7. MagMan

    MagMan Well-Known Member

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    Sounds to me like the case is dragging against the back of the chamber then hitting the forward area of the action on the way out.

    Without a picture we are simply guessing.
     
  8. AJ Peacock

    AJ Peacock Well-Known Member

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    Good idea MagMan,

    Dave1, if you put an empty cartridge in the chamber and then eject it, do you get a second set of marks?

    AJ
     
  9. dave1

    dave1 Well-Known Member

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    ill try that and see if it makes more marks. can someone tell me where is the " upload pictures" i cant figure it out haha