After the 421b jump and j.b the moment you start to fall. J.c has to hit before you hit the ground for 66c to hit, against Hyde, Linne and Hilda at least on netplay when I go for
5a 5b 2c 5© j.b j.a j.c 66c 22b 66c reload, it does around 300 less damage but is universal and it works if you just need to get the kill or you are not too confident about your excecution on netplay
When I don't have much ammo at least I go for regular bnb but on the 66c part instead of 22b I just reload, I'm assuming it's not the most optimized way
the way around 3c is normally 3c j.b j.a j.c 66c 22b 66c reload, I know that if you use 3C as a starter you can hit confirm J.© double jump J.© 214A (whiff) 5b 5© 421b 6.(B) 66c 22b 66c reload