So what is a good powder for 9mm 124grn practice?
What bullet are you using?
Sport Pistol Is my go-to now for 9mm. I have not had tine to develop and test for my other primary calibers. But it works better than anything else I have tested.
I’ve also used quite a bit of the following with very good results. I generally load to 1050-1090fps for a 127-135 power factor for practice and competition loads.
Titegroup
N320
HP38/W231
WST