i would invest in a die as the die can accurately size the bullets used. they run from 20 to 45 dollars if you get them from a reputable dealer. also check you lead
as it may not be as pure as you think it might be. i bought lead online and was ripped off as it was 13 percent tin and didn't melt until it was nearly 700 degrees in the
pot. pure lead is difficult to find good luck and happy shooting and god bless america