Discoloration on Lapua cases

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Brian564, Apr 29, 2015.

  1. Brian564

    Brian564 Active Member

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    I get it that the discoloration around the neck of Lapua cases is a sign of quality, but I don't know that exact reason. Can you tell me the scientific explanation of this phenomena and how it makes the brass better? Thank you.
     
  2. ohiohunter

    ohiohunter Well-Known Member

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    Its just annealing, you can anneal any brass but it doesn't make it lapua quality.
     
  3. MudRunner2005

    MudRunner2005 Well-Known Member

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    It is not a sign that it necessarily "makes it better", although Lapua brass IS the best brass money can buy for many reasons.

    That discoloration is the tale-tell sign that the brass has been properly annealed after forming and manufacturing, ensuring that the brass is not too hard, and will properly form to your chamber the first time it is shot, which will increase accuracy, and longevity of the brass life. Annealing also softens the brass, keeping it from splitting necks and getting work-hardened. Lots of people anneal their brass after a set number of firings.

    http://lmgtfy.com/?q=annealing+brass
     
  4. Brian564

    Brian564 Active Member

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    Thanks for the information. I am now reading about annealing and learning a lot about its benefits for brass.
     
  5. ohiohunter

    ohiohunter Well-Known Member

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    Read thoroughly. Over annealing can be dangerous, an aspect I overlooked and now have a pile of scrap brass.