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More on Zinc Contamination

Discussion in 'Handloading and Reloading' started by Vacek, Sep 7, 2008.

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  1. Vacek

    Vacek Member

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    I started a thread last week due to the fact that I believed I had some zinc wheelweights get into my melt. I am not so sure at this point but I did go back and remelt the ingots at 625-650 degrees F. I did a lot of extract fluxing and removing additional crap. I do believe the oatmeat affect I saw in my ingots was antimony and not lead.

    Regardless, I took the new ingot last night melted them in my Lee Production Pot and cast some nice Lee 311, 160 grains for my SKS/Mosin/303 Brit.

    I did add about some lino at about 15-20%.

    This morning I took one of the bullets to my vise to see if it was brittle. I pressed it both directions and the bullet held together without any cracks or shattering. I am assuming this is a good test for malleability and tensile strength. I will do a Brinnel test and post the results after the bullets have set for 24 hours.
    In short, I don't think I ever had a zinc issue, just poor fluxing and cleaning on some very dirty wheelweights.
     
  2. rogn

    rogn Member

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    dont know too much abt newfangled wheel wgts but folks over on castboolits board say you really have too try to melt the zinc > 800* to get it into solution, so it sounds like your OK
     
  3. ForneyRider

    ForneyRider Member

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    so how'd ya do?
     
  4. 243winxb

    243winxb Member

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  5. scrat

    scrat Member

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    Well it looks like your on your way in the right direction good job.
     
  6. Vacek

    Vacek Member

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    I got a BH of 22 on the bullets. They were WW with a little lino dropped directly into water. These should be sweet.
     
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