I have 7 9mm and they all use the same load, even my Kimber Solo. 5 45APC and they all use the same load. 2 40 S&W same load and 2 10mm same load.
I'm too lazy and will not take the time to develop loads for each gun and don't see a need to.
Spent brass to me is like the ring to Gollum "We wants it, we needs it. Must have the precious"