I am a certified firearms and concealed carry instructor in multiple states and as the laws clearly state the use of a firearm in self defense should be the last resort. You will have to suffer the criminal and emotional consequences of taking another persons life for the rest of yours. If you have thought it through and decided that your security posture will include a firearm for hunting AND personal protection, train yourself (NRAInstructors.org - Portal for NRA certified Instructors, NRA Education and Training) and practice continually. A firearm will not do you any good if you can not hit what you are aiming at. Most self defense shootings are less than 20 feet away and often within 10 feet. Hand to hand combat (karate, judo, mixed martial arts) skills will be essential to your overall plan if you have a malfunction or run out of ammo. I believe to become truly prepared we need to focus on our survival skills including food and water supplies first. Practice and training like the Red Cross Wilderness First Aid class should be a minimum requirement for every hunter or outdoors men. Animal husbandry can help you learn about giving shots, treating infections, vital signs indicators, broken bones, stitches, etc. There are a lot of steps between getting prepared and using lethal force. Because at the point when lethal force is your only option, your survival and freedom will most likely be statistically improbable.