@BGutzman: In my opinion, "Good enough for self-defense ranges." means, "I'm willing to intentionally handicap my ability to shoot because they are so close I 'can't miss'."
And people miss, especially under stress, at any range. There is no reason to make your job harder if there is a better alternative that meets or exceeds all of the prerequisites for the intended usage.
Rifles: Custom AR-15, Tavor, Arsenal SGL 31-68
Handguns: Colt Python, XD(M) 4.5" .40, Glock 19, M&P 9mm, Walther PPQ 9mm, FN FNS-9, HK P30S 9mm, Walther PPS 9mm, Browning Buck Mark