A friend gave me a brick of lead from an old x-ray machine that was used as ballast. It was about the size of a brick (not concrete cinder block) but the smaller orange bricks used for houses and walkways and such. I melted it down, fluxed with sawdust, and then poured it in to ingots. Everything went fine, but I noticed that the ingots have an odd color to them. They have this blue/purple color and I was wondering what the heck is it? It did this for all 35 of the ingots that I got out of the lead brick. Here is a picture with an ingot I made from it sitting next to an ingot from wheel weights. IIRC, the x-ray machine ballast is usually pretty close to pure lead. Did I do something wrong? Maybe my ingot mold was not clean? Does this mean the alloy is different? I haven't casted any bullets with the new lead yet, but was going to do half the ballast with half WW's for .44 mag HP's.
Ballast lead on left and WW's on right.
![]()