Ammo has close groupings but the run of mill gun buyer does not. The OP is most likely not highly experienced and isn't going to become a dedicated shooter.
I've seen people hit the middle of a target, keep squeezing the trigger and end up shooting a ceiling tile. Many have trouble with placing the timing of a second, third, forth shot. That's no bueno if you have to defend yourself with innocent people around. That's one reason I like my Florida carry permit, it required physical training at a range. For someone who struggles a 9mm/.380 would be a better/safer choice. Even with practice some shooters can't overcome their own coordination.
I would love NOT to go to that range.
I will be in FL soon and probably get my CCW there, nice to see the training aspect involved.