10 lb Hard Lead Mini Ingots – 1-4% Antimony Alloy | Bullet Casting Alloy | Made in USA

ZipMetals Hard Lead Mini Ingots are produced from a precision‑blended alloy containing approximately 1–4% antimony and balance lead, engineered for reliable performance in bullet casting, alloy blending, and general metal casting applications.

This alloy offers significantly greater hardness and durability than pure lead, delivering improved bullet integrity, better mold fill‑out, and enhanced resistance to deformation during handling and firing. Antimony strengthens the lead matrix, increasing hardness and making this alloy a preferred choice for casters who demand consistency and predictable results.

Each 10 lb box includes a convenient mix of 1 lb and ½ lb ZipMetals mini ingots. These smaller ingot sizes melt quickly and evenly, giving casters precise control when adjusting alloy composition or topping off casting pots.

With a typical hardness of 10–13 Brinell (BHN), this alloy strikes an ideal balance between strength and castability—perfect for bullets, sinkers, ingots, and a wide range of molded lead products.