@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.
Rifle: SCAR 16S, Custom AR-15
Pistols: Colt Python, Springfield 1911 TRP, XD(M) 4.5" .40, Walther PPQ First Edition 9mm, Glock 19