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Hot Topic (More than 10 Replies) Mystery Metal (Read 4526 times)
JerryH
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Mystery Metal
Apr 1st, 2016 at 9:02pm
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Also got 3# of this from the same friend. Somewhere in the cobwebs of my mind I recall seeing some labels like this. Maybe tin? .003 thick. 

Any thoughts?

If not it'll go into my "mystery metal" to be used for ballast weights.

I'm not that desperate for lead or tin to take a chance, and really don't trust hardness testers.

JerryH
  
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Longdistance1
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Re: Mystery Metal
Reply #1 - Apr 1st, 2016 at 10:01pm
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Hi Jerry 
That looks like backing foil from dental x-ray plates.
Later Longdistance
  
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bleukahuna
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Re: Mystery Metal
Reply #2 - Apr 1st, 2016 at 10:17pm
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Looks like dental x-ray lead, it's usually pretty pure. In another mystery metal post you had some bolt anchors, the outer sleeves are very soft, almost pure. The inner, threaded part truly is a mystery, I have encountered some that were high antimony, some were zinc alloy, horrible stuff to get in your boolit alloy.
  
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Schuetzenmiester
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Re: Mystery Metal
Reply #3 - Apr 1st, 2016 at 10:23pm
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U can check for zinc with Clorox bleach solution.  If you watch closely, you will see tiny bubbles as the chlorine reacts with the zine.  If your casting equipment gets contaminated with zinc, just throw it away  Cry
  
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JerryH
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Re: Mystery Metal
Reply #4 - Apr 1st, 2016 at 11:56pm
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Like I already said, anything "mystery" goes into the dire straights pot. Some day it may be useful. You never know. And at that point, I won't really care what it is.   

Nothing but pure lead and tin through my Schuetzen rifles.

JerryH
  
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Schuetzenmiester
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Re: Mystery Metal
Reply #5 - Apr 2nd, 2016 at 1:09am
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You will care if zinc gets in your pot, ladle or mold.  You are done making good bullets  Cry  Don't even want to talk about how I know  Cry Cry Sad Sad
  
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JerryH
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Re: Mystery Metal
Reply #6 - Apr 2nd, 2016 at 1:35am
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Exactly why my "mystery metal" will never see the bore of my Schuetzen rifles. 

JerryH
  
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argie1891
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Re: Mystery Metal
Reply #7 - Apr 2nd, 2016 at 3:56am
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I think it is dental lead foil also. a few years I was given a lot of it. melted down and it made good bullets. I truly understand the fear of zinc in your melt. that said I started casting bullets because I wanted to save money the cost of foundry metal is out of my budget. I have a couple tons of clip on ww and a few hundred pounds of lino, and even a few hundred pounds of foundry lead. that said I am darn careful what I put into my pot. luckily I don't need to use mystery metal. problem is we never know for sure that there is no zinc or other harmful ingredient
  
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SSShooter
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Re: Mystery Metal
Reply #8 - Apr 2nd, 2016 at 11:54am
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JerryH wrote on Apr 1st, 2016 at 11:56pm:
Like I already said, anything "mystery" goes into the dire straights pot. Some day it may be useful. You never know. And at that point, I won't really care what it is.  

Nothing but pure lead and tin through my Schuetzen rifles.

JerryH

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waterman
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Re: Mystery Metal
Reply #9 - Apr 2nd, 2016 at 2:51pm
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Back in 2008, a friend got some dental lead foil.  We melted it in his shop, but it had some sort of plastic bonded to it.  The plastic caught fire, filled the shop with fumes that burned your eyes.  No more dental lead foil.

Back in the 60s, wasn't zinc used for a lot of HV pistol bullets?  I have a couple of old .357 moulds for them.  Did the zinc ruin the lead pots, etc. back then?
  
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Re: Mystery Metal
Reply #10 - Apr 2nd, 2016 at 4:12pm
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waterman wrote on Apr 2nd, 2016 at 2:51pm:
...

Back in the 60s, wasn't zinc used for a lot of HV pistol bullets?  I have a couple of old .357 moulds for them.  Did the zinc ruin the lead pots, etc. back then?


The Harvey bullet used zinc washers.

There was an article or two in the popular gun mags about casting zinc bullets - with some success for high velocities - but I don't remember them being good for hunting.
  
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Schuetzenmiester
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Re: Mystery Metal
Reply #11 - Apr 2nd, 2016 at 9:42pm
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Did they cast pure zinc bullets? 

Zinc sure messes up lead! Cry  I think I got it from sticky back wheel weights.
  
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Cat_Whisperer
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Re: Mystery Metal
Reply #12 - Apr 3rd, 2016 at 12:57pm
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Schuetzenmiester wrote on Apr 2nd, 2016 at 9:42pm:
Did they cast pure zinc bullets? 
...


yes
  
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