I live in a condo. Every direction has people. I definately don't want something that can penetrate a car door. Right now my shield has 124 gr standard gold dot. Excessive penetration is not my idea of an ideal self defense round. LE has to take on multiple bad guys under a lot of conditions. They run toward the danger. We with ccw shouldn't. Look at that fiasco at the empire state building a few days ago. All the collateral damage to innocent people. That is unacceptable.