I use a Redding BR30, and I mostly don't worry about weight variation.

Here's an example. 41.5 grains of 4895 under a 168 in LC brass is a very standard load for the 308. I'll fill the hopper and throw twenty charges to settle things. I then throw ten charges together and weigh them. If the scale says 415 grains then I call it 41.5 grains average. If not I adjust until I get 415 grains. Put the dial setting in my notes for future use. After that the charges are thrown directly into the cases.

My 5R Milspec put fifteen shots under 3/4 moa when testing the procedure.

I've shot a couple of ten shot, half moa groups with long stick 3031 loaded the same way for my 40X in 308.