Well, since Aooyb is the be all and end all of self defense....
Again there are more important things to worry about. Choose ammo that funcitons properly in your sd guns and never look back.
If you're in court they are going to pick apart every little detail no matter what. Custom +p+ hollowpoint handloads of death?
Well, you were just looking to kill someone, weren't you?
FMJ milspec ball ammo?
What are you, Rambo?
If you're involved in a questionable shoot, you're going to get raked over the coals. Even in a good shoot expect civil litigation on the part of the lead-recipient.
Good friend of my wife's family is a Deputy in Yuma, AZ. I went on a number of ride alongs with him when I was in the Corps there. One night, during a motorcycle gathering, two motorcyclists both with female passengers collided head-on on a two-lane highway. We were first on scene, and it was a gruesome mess. I was instructed to don a reflective vest, put down some flares and start turning traffic around. It was after dark, and I had a 4Dcell mag light. I was a Marine Air Traffic Controller at the time, and telling cars to turn around on a highway isn't exactly rocket science.
In the resulting aftermath, the two sides were after each other in a big way. Several of the people lost limbs, fingers, feet, hands. The lawyers were trying to get blame placed on the other parties. One side (losing side ultimately) decided that the Sheriff's office had wrongly placed blame in the ticket. Part of the argument was that I was employed, as a "civilian" ride along, to direct traffic. They even called into question my choice in flashlight.
Lawyers will think of any little thing to prove thier side.
The second part of your original question bears some merit for sure. Are you the only person who experiences problems with that specific ammo or not....