In and effort to get better accuracy I started weighing my bullets and grouping them by weight in Lots. I realize that different alloys will cast different weight but I've been using Linotype and getting different weights in the same casting session of over several grains with nominally 155-200 gr molds. I kind of expected my Lino to cast lighter weight than nominal, but I get significant variation as much as 5-10+ grains with a "200" mold. ( don't have my notes handy)
Realizing that the pot temp cycles and pot levels and adding lead changes temp, How much does it effect bullet weight?
PS I use a Lee 10 pound pot and have no PID controller.