I'm am kind of new to this so I thought I would ask. Does it really matter what kind of ammo you have in your gun if you are going to have to use it in self defense? I have just been buying the cheap stuff to practice with and to get the feel of the gun. My wife and I have applied for our LTCH and I would just like to know if it's really going to matter if we have the high dollar ammo in our guns if we have to defend ourselves.