As already stated as a concern by others, the semi-wadcutter isn't the most popular choice due to reliable feeding into the chamber. I don't know of any semi-auto able to feed wadcutters.
From a ballistics point of view, my other guess is the hollowpoint bullet has come a long way in the reliable feeding department along with holding its own on making a pretty vicious wound channel. If one can do both admirably and the other doesn't, then the process of elimination ensues.
That's how I see it...
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