penetration
Most of our houses in California have 1/2 inch sheet rock as did the guns and ammo article, but at that still that is 3 rooms of a house which your son, daughter wife Etc. may inhabit, my old fashioned glazer safety rounds will only travel through 2 sheets of 1/2. I was again only cautioning against unintended casualties that might be family members of yours. I use safety frangable rounds as I don't intend to bury one of my kids or neighbors. I don't think some note of caution would hurt.
I wouldn't use my M14 as a home defense weapon either for the same reason, but know of many people that think an SKS/ Ak or AR type weapon is the perfect home defense firearm.
I don't think many bad guys would still attack you after #6
Rantingredneck, once their out of your home in California shooting at them down the street would put me in jail. California is a homecide only state, as in if you kill them the best you can hope for is justifiable homicide, there is no self defense plee if they are trying to flee. Even if I killed him in my home it is still justifiable homicide here.
Robert