Hornady Lead Balls 44 Cal .451 Lead BallsCompletely uniform in size, weight, and roundness, Hornady® Round Balls deliver consistent and accurate performance. They’re cold swaged from pure lead which eliminates air pockets and voids common to cast balls. And the smoother, rounder surface assures better rotation and consistency.Precision swaged to eliminate air pockets and deliver optimal accuracy.Pure lead replicates traditional design.Uniform in size, weight and concentricity.IMPORTANT: Before choosing a round ball diameter, check the bore size of your firearm and take into consideration whether you’re using compression fit or patched projectile loading.