Help me identify this mysterious substance?

Discussion in 'Reloading Room' started by Branth, Oct 9, 2014.

  1. Branth

    Branth Member

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    This is coming out of some milsurp .308 brass... What on earth is it? It's soft and kinda chalky, almost like ash, but it comes out in these neat little semicircles like it was caked on the inside of the case. I'm tapping them out of the inside of my cases now.
     

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  2. Hermitt

    Hermitt Hey! Get Off My Lawn! Member

    Does it catch on fire when you hold a match to it? :cool:
     

  3. ajole

    ajole Supporting Member

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    Mud?

    Did you taste it yet?:p
     
  4. cicpup

    cicpup Resident PITA Supporting Member

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    Well obviously it's a penny.
     
  5. Branth

    Branth Member

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    Considering it's fired brass, it would be really unlikely it was flammable. I didn't try, though.

    I also didn't taste it. I'm not in the habit of eating mysterious substances. It's kept me out of the ER so far, so I figure it's working. Whatever floats your boat, though, I guess... o_O
     
  6. ajole

    ajole Supporting Member

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    Too young, I guess.

    Cheech and Chong? "Good thing we didn't step in it!"
     
  7. Never hurts em in the cop shows on TV...:D
     
  8. ArmyScout

    ArmyScout Supporting Member

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    If it's coming out of used Brass, it may be old powder residue? How thick is it, does it crumple easily?
     
  9. lklawson

    lklawson Staff Member

    It's milsup? Possibly some sort of sealer sprayed on the inside of the case to ensure an environmental seal between the bullet and case.

    This article on our sister forum discusses it in some old milsup .45ACP.

    Peace favor your sword,
    Kirk
     
  10. Branth

    Branth Member

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    ^That seems like a pretty plausible explanation. It probably got burned up into that ashy substance when the cartridge was fired.
     
  11. SWAGA

    SWAGA No longer broke... Lifetime Supporter

    It could help if you told us what the origins of the ammo are.
     
  12. FlashBang

    FlashBang I Stand With Talon Lifetime Supporter

    Is this just used brass you got somewhere or ammunition that is surplus and that you are shooting?

    If you have actual loaded rounds of it, pull the bullet from one and dump its charge out to see if it is there before being fired.

    My guess is that it is degraded powder residue from either improper storage or breakdown caused by handling over the years.

    .
     
  13. Branth

    Branth Member

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    Once-fired military brass I bought. I don't have any loaded ammo. Case headstamps are LC '13
     
  14. SWAGA

    SWAGA No longer broke... Lifetime Supporter

    Is that Lake City 2013?
    Maybe you could call 'em......
     
  15. Bull

    Bull Just a Man Supporting Member

    I'm literally ten minutes from lake city am. plant...
     
  16. SWAGA

    SWAGA No longer broke... Lifetime Supporter

    Well, did you go and ask? :D
     
  17. Bull

    Bull Just a Man Supporting Member

    the gate guards aren't really customer friendly