Well, this is the site.
A wad-cutter or semi-wad-cutter bullet is used on paper to make a hole which is easy to score. The SWC feeds far more reliably in a semi-auto than a flat-front WC.
FMJ or RN or "hardball" feeds reliably in semi-autos, but is the least effective in killing game or stopping people.
Hollow points' purpose is two-fold. First, expand to a larger than bore-size to create more internal damage, delivering its energy mostly within the target and thus be a more effective "stopper"; and second, to reduce the risk of over-penetration on through a bad guy and into a good guy.
Hope this helps, Art