I doubt its all lead. Use to get 2 five gallon buckets full of wheel weights from a tire shop before I moved. I can bet atleast half will be zinc or steel. If u.can stratch it with ur finger nail, its lead. Make sure u seperate the wheel weights before smelting them. Don't want to contaminate it with the.zinc. also have to take the steel clips in affect too if you doing.it by weight.of bucket. The last five gallon bucket I filled with lead wheel weights it weight was 110lbs I was able to get 85lbs of clean lead. 25lbs of it was the clips and drouse I skimmed off.
If u see zinc, steel, and junk like tire stems in them I would offer a low price due to more work for you to do..30-.35 cents a pound.
Steve
NRA Member
"...to disarm the people - that was the best and most effectual way to enslave them." George Mason