Archeryrob
Undecided on a great many things
I do not have a progressive pres, but a single stage. I use a Lee perfect powder measure and sit the lid for the Lee die set under it. Every one in a while I drop one or just some powder slips from the measurer. Anything in that try I save and anything on the work bench I consider contaminated by dirt, dust or other powder and throw out in the grass.
To be honest, I am using V320 right now for 9mm and almost 300 recently at 3.6 grains and without me slipping up and dropping a casing I highly doubt I could save enough to equal three grains. According to my spreadsheet my V320 pound of powder will dose out close to 1944 loads at 3.6 grains. So that tiny bit of powder is not worth fooling with. One sideways primer in the hand tool probably costed me more, especially wiht the price of primers now.
To be honest, I am using V320 right now for 9mm and almost 300 recently at 3.6 grains and without me slipping up and dropping a casing I highly doubt I could save enough to equal three grains. According to my spreadsheet my V320 pound of powder will dose out close to 1944 loads at 3.6 grains. So that tiny bit of powder is not worth fooling with. One sideways primer in the hand tool probably costed me more, especially wiht the price of primers now.