I'm hoping someone can help me understand why people would want to use +P for .38 special. If I'm not mistaken wasn't the downfall of this round over penetration? I've been out to the range quite a lot this past week thanks to Christmas gift cards for ammo, and I tried a variety of rounds from hornady 110 grain to remington and American eagle 130 and 158. For a self defense round I chose the hornady critical 110 grain as it seems to be the best punch+expansion without over penatrating but everyone seems to be gaga over +P. What am I missing?