The great thing about loading/reloading 9mm is that it's pretty much all inert and harmless. You can drink, smoke, watch TV, ................who cares?
So.....what is YOUR load data....mine is 4.0 gr of bullseye with a 115 lrn in 9, and 4.0 of bullseye with a 200 lrn in 45 acp.
And when I load, there is only 1 container of powder on the bench, the one I am loading from.