I think you guys are being too hard on Nanuk (though it doesn't seem to bother him). He may have over-stated the uselessness of a .38 wadcutter but I wouldn't say he has lost credibility for stating his personal experience. If he has 25 years as a street cop (and I have no reason to doubt his word on that) then his experience is data worth considering, even though anecdotal. Much information about Caliber effectiveness is, always has been, and always will be anecdotal. It has always served me in many endeavors to read the books and then also listen to those with experience. The combination is golden.
Use It Up, Wear It Out,
Make It Do, Or Do Without