Black Hills Ammo 5.56mm 69 Gr. MatchKing New Brass Black Hills Rifle Ammunition 5.56mm 69 Gr.Sierra MatchKing 50 ct. box The products offered for sale on this page can expose you to chemicals, including Lead, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.