First, is the gun rated for +P ammo? If so any +P JHP in 125gr. should work just fine. The Federal Nyclad is a good round as is the 129gr. Premium Hydra-Shok. The problem is the shorter barrel gives lower velocity than say a 4" and many JHP rounds need more velocity to really open up. The Nyclad is a Hollow Point design without the harder jacket, nylon coated, and expands well at lower velocities. Maybe hard to find though. The 110gr. Federal Premium Personal Defense is another choice and Hydra-Shok design. Not +P rated. If she can handle something with a little more umph, Federal also makes a Nyclad 158gr SWC-HP. Would give better penetration along with expansion.
To my knowledge, Federal is the only one that makes a Hydro-Shok design bullet. As well as the Nyclad design. Don't know if you can buy the bullets for handloading though as I have never seen them on any of the sites I buy from.
If a man has nothing greater to believe in than himself, he is a very lonely man.
How can I judge others, when I, myself, am not perfect?
Children hold your hands for a while. Your hearts forever.