High density, nontoxic projectiles and other articles, and their methods of manufacture, are disclosed. More particularly, high density nontoxic W--Cu--Ni--Fe alloy compositions, methods of their manufacture and methods by which they may be used as projectiles such as shots, bullets, and pellets and other products traditionally made of lead alloys will be detailed herein in some embodiments. These products have a density comparable to that of lead while avoiding problems of toxicity associated with the use of lead.