I use 165gr. RangerT in my G-23. There are pretty good You Tube videos of ammo tests on common SD loads. The ammo manufactures often also have test data available.
“Out of every one hundred men, ten shouldn't even be there, eighty are just targets, nine are the real fighters, and we are lucky to have them, for they make the battle. Ah, but the one, one is a warrior, and he will bring the others back.”Heraclitus