While Jeff is a very entertaining author, and created many neat aspects of today's training and competition, he's about the last guy I'd ask about defensive firearms selection. The 223 is ok, according to Jeff, as long as it's used in an AUG or a Mini-14. The AR- series is a fine rifle, as long as it's in 308 caliber. Jeff has said that a 40 gr .22 caliber spitzer, at 2200 fps offers adequate stopping power, by means of hydrostatic shock, and then demeans a 40 gr 223 bullet going 50% faster than that (ie, 3300 fps) as being a mere "poodle shooter". Jeff has forgotten how happy he was, in WWII and Korea, that we had the M1 Garand, the BAR, and the M1 Carbine, against enemies with bolt actions. Now he claims that you are better off with a short ranged bolt action (with no luminous sights) than you are with an autoloading rifle. Jeff has said that:"You are no more armed because you have a gun than you are a musician because you own a guitar". Then, somehow, mere possession of a rifle converts you from being a "subject" into being a "citizen". Sorry, but one or the other is not true. If you need training, then you need training. The fact that you own a Scout Rifle doesn't change your need of training. Nor can it make the Scout Rifle more than a very low grade fighting arm.