Both AA#7 and WW-571 work well and meter beautifully. Both give good accuracy but AA#7 tends to leave too much residue to suit me. If you can ever find it, there's a French powder called BA-9 that was formulated especially for the 9mm and is hands-down the best powder I've ever used in the Parabellum. It's imported to the US but no one locally carries it and the haz-mat charges make it too expensive to order in small quantities. I don't recall the manufacturer's name at the moment.
|