Nice score :)

[archmaker]

My brother just handed me about 300+lbs of pure lead. He had bought a lot of odds and ends from the US Army.

According to what I have been able to find on the net, it is has to be 99.9% pure.

(QQ-L-201, Grade C)

[lwknight]

Lucky day for you.
I suggest you keep most of your pure lead pure till you decide to alloy it for use so you can keep up with what is what. I have a lot of what I can only guess what is really is.