Our current issue 9mm ammo is Speer GDHP 147gr. Shoots very well in all the guns I've tried it and it's been found to be very effective.
An excellent article about picking self-defense ammo. It's not just bullet weight or bullet velocity, but a combination of all the above. Sometimes the light fast bullets expand too much and don't penetrate. Sometimes the opposite is true. Regardless, ditch the Hydra-Shoks...they were good in their day, but are nowhere near the better, newer rounds. By coincidence, both our current .40 and 9mm are on this gentleman's list as being good choices:
http://ammo.ar15.com/project/S...e_Ammo_FAQ/index.htm