Graduation Gift. Beretta Px4 Storm & 200 Winchester full metal jacket rounds

[Papewaio]

If a 9mm hand gun is lethal within the ranges typically people endup in a shooting. Then it is sufficient for self defense.

If you did a database crunch on most self defense shootings they probably are going to be:
Within 10m
In confined spaces ie indoors, in a car, an alleyway, a shopping centre or the largest area a carpark.
Dark
Confusion... Most muggers will probably not challenge you to go for your gun thu will either have a knife or a gun in your gut before they demand a wallet.

If these are the typical scenarios then a small firearms would be much better then a weapon made for a long range firefight.