The use of depleted uranium munitions has been fiercely debated, with opponents like the International Coalition to Ban Uranium Weapons saying there are dangerous health risks from ingesting or inhaling depleted uranium dust, including cancers and birth defects.
As well as being very mildly radioactive, depleted uranium is still a heavy metal, so can poison you in a similar way to lead. IIRC, that’s the most dangerous aspect of the material, and isn’t mentioned by the article.
As opposed to the other bullets that are also heavy metals.