When you're in a fight for your life, overpenetration should NOT be your primary concern. Ruler number 4 means nothing in a heated defensive situation, when your only concern should be dealing with the goblin that's threatening your life.Kendahl said:I have heard a .223 rifle loaded with hollow point ammunition recommended as a home defense gun. Aside from its other virtues, the bullet is supposed to shatter easily on contact with typical house walls. If true, this would avoid the risk of hitting an innocent person outside. Have you performed any tests that would confirm or deny this claim? I looked but didn't find anything.