On Wed, 03 Mar 2004 02:00:49 -0600, Richard J Kinch
wrote:


Perhaps you mean lead and antimony?


Nope.

Antimony is the main contributor of harden ability, but arsenic helps
it retain the hardness once it has been heat treated.
(at least according to what I have been reading from the cast lead
bullet experts)

As I said, many people will add lead shot (of the type used for
shotgun shells) to their pot, because certain types of this has up to
1% arsenic. A guy I work with tried it, and happened to use shot that
had zero arsenic, and all of his bullets ended up too soft.

Dave