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Utah Shooter
03-11-2017, 10:21 PM
Casting today and it seemed there was an excess of lead particles. Is this from having more antimony or have I just not noticed it before? https://uploads.tapatalk-cdn.com/20170312/7493c7359e83a66e99429f21a89851f9.jpg

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runfiverun
03-12-2017, 01:19 AM
it's from the bottom of the sprue cut.
it seems like sometimes I get more and sometimes I don't see any.
I think just 1 second more or less makes enough difference to get it or not.
Utah Shooter
03-12-2017, 01:56 AM
Funny I was just looking at my new mold and thought of this. Now that I think of it some did and some did not. I could hear it hit the tin I was dropping them on. There seems to be more play in this mold than the other one I have. Guess I will tighten it a bit before next session. Kids and dogs are why I worry. The cleaner the better.
Tazza
03-12-2017, 05:46 AM
I find when i run mine hot, i get a lot more crumbs of lead than i do when i run it cooler.
TexasGrunt
03-12-2017, 08:36 AM
It's from the sprue cut. You're tearing the lead because it hasn't cooled enough. Just look at the bases of the boolits in the picture.
Utah Shooter
03-12-2017, 02:37 PM
there are divots in the bottom of some that are huge and others that are not. Interesting.

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TexasGrunt
03-12-2017, 06:24 PM
Which mold? How many cavities? Do you always fill them in the same order?
Utah Shooter
03-12-2017, 07:33 PM
Mihec 6 cavity brass mold yes same order
https://r.tapatalk.com/shareLink?url=http%3A%2F%2Fcastboolits%2Egunloads% 2Ecom%2Fshowthread%2Ephp%3Ft%3D308082&share_tid=308082&share_fid=9688&share_type=t

9mm (356-125 2R) 6cav brass solid mold Group buy Lube groove or no lube groove
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TexasGrunt
03-12-2017, 07:57 PM
Your mold is getting too hot. I've never used a brass mold but I know brass holds heat. Casting in the same order all the time with a multiple cavity mold also can cause problems as part of the mold is much hotter than the rest.

Try cooling the mold and slowing down you cadance a bit.
Utah Shooter
03-12-2017, 08:49 PM
Interesting. I was trying to go fast. Thank you

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