I have been doing some research on reloading brass. I have been leaning towards a dillon 650 press. I have been reloading shotgun shells for five years on a mec 9000g with automate. I load around 15K shells per year so I am quite familiar with the process. The pressures are quite a bit higher on the brass and I am wondering how accurate the powder drops have to be and if the dillon powder dispensers are that accurate. I know from loading with the mec that different powders drop differently and none of them will drop the exact amount every time. In my shotgun shells the powder drop will vary +/- .3 of a grain one way or the other on an average. Do the powder drops vary when loading brass? If so, how much of a variance is allowed or considered safe when loading brass?