Hornady Swaged Lead Round Balls in 45 caliber-approximate dimensions .445" diameter, 133 grains. Hornady cold swages from pure lead which eliminates air pockets and voids sprues common to cast balls, creating a near perfect, consistent and concentric round ball used by the U.S. Muzzleloading Team who have won numerous Gold Medals. Hornady's strict production procedures results in a smoother, rounder surface with unsurpassed uniformity demanded by muzzleloader's worldwide. 100 per box.