Re: powder for 9mm subgun loads??
WW231 has been my standard in the MP5's with 115 bullets. I got a LARGE quantity of pulled Hornady 95 grain .380 bullets about 10 years ago and they ran great in the MP5 for blasting. I have also loaded up WW231 in larger doses for the UZI SMG.
Darin Reiss
FFL/SOT in Haysville, KS