Most bullet companies use the common bullet mixture of 2% Sn (tin) 6% Sb (antimony) and 92% Pb (lead). The Bullet Works chose to use a different mixture of 2%Sn (tin) 8%Sb (antimony) and 90%Pb (lead) in order to get a special mixture. The Bullet Works has contracted with a lead smelter to make this mixture for the company. In order to get this mixture it has to be purchased in either 10 or 20 thousand pound lots. The big lots allow the bullet alloy to be controlled very closely for the highest quality possible. In all bullet alloys, the more tin and antimony in the lead, the better the bullets! Alloying these two expensive metals with lead quickly raises the cost of the bullets, therefore most companies choose to use the cheaper alloy.