Lead score question.

[Pumpkinheaver]

I scored two large pieces of lead about six months ago and am wondering what they were/are. My cousin brought them to me from Iowa if that helps. He knows nothing about them as somebody gave them to him.
http://i176.photobucket.com/albums/w170/pumpkinheaver/Hunting/12046954-793A-4CC3-8F6A-31880050B78D_zpsavacaflu.jpg (http://s176.photobucket.com/user/pumpkinheaver/media/Hunting/12046954-793A-4CC3-8F6A-31880050B78D_zpsavacaflu.jpg.html)
They weigh just over 30 pounds each.

http://i176.photobucket.com/albums/w170/pumpkinheaver/Hunting/DA9DAC0C-6318-40CD-9A85-A97C82240156_zpsxcjocbne.jpg (http://s176.photobucket.com/user/pumpkinheaver/media/Hunting/DA9DAC0C-6318-40CD-9A85-A97C82240156_zpsxcjocbne.jpg.html)
This will not help you identify them but thought it was a neat picture. Round was a 55 gr Hornady FJM over H-335 from my AR. Impact at 25 yards.
http://i176.photobucket.com/albums/w170/pumpkinheaver/Hunting/D461FA98-26B0-47C0-B5AD-BD88B706246F_zpshjvyuw9z.jpg (http://s176.photobucket.com/user/pumpkinheaver/media/Hunting/D461FA98-26B0-47C0-B5AD-BD88B706246F_zpshjvyuw9z.jpg.html)
This is a round of Monarch Ball from my AK. Impact was at 25 yards.

[Retumbo]

isotope containers

[Fishman]

Good alloy too. Quit shooting them and melt them into boolits :)

[mwells72774]

As in... radioactive isotope containers?

[lightman]

I agree, Isotope containers. Make bullets out of them and find a better target!

[bangerjim]

As in... radioactive isotope containers?

Yes.......radioisotopes. A very common and totally safe source of good alloy.

[Pumpkinheaver]

Good alloy too. Quit shooting them and melt them into boolits :)
Oh they are destined to become .356, .358 .401, .452 and .459 bullets very soon!!!

[Pee Wee]

They are pretty much pure lead, you may have to add some lino type or something to bring up the BHN