Well, I guess you can start from my middle of the road formula.
9mm., Berry 147gr round nose, copper coated bullet, 3.4gr Titegroup, COL 1.150, crimp .378, bullet finished Wt. 210.2gr..
Use SAMMI charts for a place to start. Bullet length determines COL..
I used to shoot a lot of Berry's plated bullets in mixed (or tired) cases ahead of TiteGroup. Moderate load and watch your overall length. Not 'match grade' but certainly 'shooter grade'.
At 3.5 grains per load, a pound of TiteGroup loads 2000 or at 4.5 grains a pound loads 1550 if you don't spill any.