Hi all, I'm researching AR 15s for the same reason most here are.... personal and home defense if things go to "mad max", and becuase I'm afraid that if I wait much longer I won't be able to get one. Never owned one; right now I own a 12ga shotgun, 2 .270 deer rifles, and my favorite, a 6.5x55 Swede chambered Tikka deer rifle. Because of my last selection, I started hand-loading. As far as AR-15s go, I'm thinking about the newer 6.8mm version, which should have better stopping power than a 5.56 but less recoil than an AR-10 with...