waco
Springfield, Oregon
I've cast twice with this mold now for a total of around 1000 bullets. I'm getting close to a 50/50 reject rate.
I know AL molds take a few heat cycles to break in. I did scrub the mold with Dawn and a toothbrush before using it. I can think of a few things it could be. I preheated the mold on a hot plate. I ran my alloy, 50/50 pure/coww/1% tin anywhere from 700-800 degrees.
1. Mold still not totally clean?
2. Mold still not hot enough?
3. Alloy not fluxed well enough?
4. Need to adjust the speed of the pour?
Is there anything else I am missing? A venting issue possibly?
Thank you.
I know AL molds take a few heat cycles to break in. I did scrub the mold with Dawn and a toothbrush before using it. I can think of a few things it could be. I preheated the mold on a hot plate. I ran my alloy, 50/50 pure/coww/1% tin anywhere from 700-800 degrees.
1. Mold still not totally clean?
2. Mold still not hot enough?
3. Alloy not fluxed well enough?
4. Need to adjust the speed of the pour?
Is there anything else I am missing? A venting issue possibly?
Thank you.