Antimony is a brittle silvery-white metalloid chemical element commonly added to lead to increase the hardness of bullets.

Antimony’s atomic number is 51.

aka:

• Sb (symbol)

 

Footnotes / Sources:

“Glossary ⇒.” Sporting Arms and Ammunition Manufacturers’ Institute. Ed. SAAMI’s Technical Committee. Web. 15-18 Jan. 2011.

 

Question:

• Do you alloy your lead before casting bullets? If you don’t mind sharing, what is your recipe?