Nickle plated cases turning black

Discussion in 'Handloading and Reloading' started by tightgroup tiger, Dec 31, 2018.

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  1. tightgroup tiger

    tightgroup tiger Member

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    I was running some plated 9mm cases through my sonic cleaner yesterday and discovered a few of them turned the prettiest black I have ever seen. Almost a gun metal black.
    Black cases.jpg
    These cases are all the same head stamp.
    I am loosely assuming these cases are Browning brand ammo cases because of what looks like an antler on the head stamp.
    browning 9mm.jpg
    I was using RCBS case cleaning solution so I decided to clean few more tonight and this time I used my old stand by, Lemi-Shine and Dawn and sure enough there was another black case in there.
    Same head stamp.
    Anyone have any idea why these would turn black in a ultrasonic cleaner?
    Of any other head stamps, the Nichol plated brass all stay shiny white.
     
  2. Demi-human
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    Demi-human maybe likes firearms a little bit…

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    All the Browning brass I've seen come from the factory that way. I'm not sure what it is. Can brass be anodized?
    I kinda like it, but throw the very few I get in the 'to trade' bin.
     
  3. tightgroup tiger

    tightgroup tiger Member

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    Are you saying they were black before I put them in the sonic cleaner? Well that would explain it then. (LOL)

    It would also explain why they stay black after I run them through the tumbler after their cleaned in the sonic cleaner, and dried.
    What ever it is it's tough stuff.
    I like the looks of it also, but now I'm going to have to cut into one to see if it is brass or something else.
     
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  4. Dudedog
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    Dudedog Contributing Member

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    Haven't seen any but they hear come that way.
    If I remember correctly they are supposed to be brass.
     
  5. tightgroup tiger

    tightgroup tiger Member

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    Good, it looks like I have nothing to worry about.
     
  6. Ironicaintit

    Ironicaintit Member

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    I'd heard they were steel with some sort of coating, but no, they are brass.
    I have a few with that Browning headstamp that look like uncoated brass, but the majority are of the dark and pretty hue.
    good neck tension with them, too!
     
  7. sparkyv

    sparkyv Member

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    It happened to WMA (Winchester) range brass when I sonicated them. I use citric acid (ingredient in lemi-shine) with Dawn dish soap. The discoloration is not evenly distributed, and I read that the cause may be due to some zinc leaching out. Hasn't happened to any other nickel plated brass that I've cleaned. Pretty cool looking to me, and I've shot and reloaded them several times with no issues.

    20181231_200645.jpg
     
  8. Bongo Boy

    Bongo Boy Member

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    I use a product I think is a citric acid mix in my ultrasonic cleaner. It works wonderfully on brass, and does clean the nickel plated too, but turns it black. It's not blackened all over or uniformly. I assume this is simply a nickel oxide or sulfide maybe, I don't know...chemistry was one of my worst subjects. :) In any case, as far as I know all nickel cases are simply nickel plated brass, and the black is just a chemical reaction with the nickel of something the nickel plating is alloyed with. It's unfortunate from an aesthetic perspective, but other than that, no affect I can think of.
     
  9. Bandit67

    Bandit67 Member

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    I have some of those browning cases in 9mm and .40 that I picked up from the range. I looked on their website and they call it black nickel. I think they look pretty cool.
     
  10. jeeptim

    jeeptim Member

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    O.K.
    A few years back some premium ammo was black kinda like black chrome or nickel but their was a lot of debate about how hard it is to see in the chamber since it is black.
    Looks very cool but have not seen it in a few years.
     
  11. Bandit67

    Bandit67 Member

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    Screenshot_2018-12-31-21-53-09.png
     
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  12. bbqreloader

    bbqreloader Member

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    So that is what that insignia is supposed to be on the headstamp... Antlers equals Browing. Found something like that on a 30-06 case, wondered if it was a bad headstamp.
     
  13. fxvr5

    fxvr5 Member

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    Demi-human likes this.
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