Re: 9MM LOAD
any shotgun powder, usually 9mm works best with shotgun powders used for field or heavier loads, wsf,hs6(ww540 same), check at hodgdon reloading on the web. nice thing about the 9mm is that most 9mm magazines are built for the longer FMJ loads, which allows shorter HP to be seated out further and thus higher velocities without additional pressure.