RJ, I had to jump back in when I read your question. If you haven't already read Andrew Branca's excellent book - "The Law of Self Defense/The Indispensable Guide for the Armed Citizen" - it will answer your questions. In the appendix, he provides a breakdown of state -specific legal information.
Edit to post - I should know better by now to read the entire thread - blues gave the same information. In MY defense, this thread changes, literally, by the minute.