WW 231 is my go to powder for 9mm. Or it was when I was regularly loading 9mm.
It's clean, it has no discernible muzzle flash that I've ever seen, it meters wonderfully, and it produces very accurate ammunition.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.