I don't have to worry about that. I hand throw every charge with Lee Dippers; I choose the one just under a full charge weight, dump a full scoop, then scoop up another full scoop and 'sprinkle' it on like salt from a spoon until I achieve the charge weight. I do check the zero and weigh a check weight every hundred or so. Usually not needed. Another advantage of doing this is I don't have to worry about whether the powder meters or not. Not as fast as a Dillon 550, but very consistent.