Hi,
I've been casting on and off for years and am positive I have had some zinc off and on over the years, what does it do to the boolits if it's contaminated? I've got 1000 lb or more of various ingots, scraps, etc.. how can I tell if it's contaminated or not?
I've never had many problems casting other than the frosted or wrinkled not filled out etc.. but once the mold heated up and got to the right temp they smoothed out.. cast a few hundred once and I remember and some were frosted like a matted finish and they seemed to work fine in the sizer and shooting them, so what would I look for to tell if there's zinc in them thar ingots??