I have done quite a bit of testing of 45ACP hollow point ammo. Over half of the brands out there do not expand at all if fired through cloth (and that's with a 5" barrel). Lately I have done most of my testing with my G30 because that is what I usually carry, and not many brands out there will expand if fired through cloth from a shorter barrel. I have tried Winchester Ranger T 230gr (standard and +P), Speer Gold Dot 230 gr and 185 gr, Golden Saber 230 gr, Winchester PDX1 230 gr, Federal Hydrashok 230 gr, Winchester SXT 230 gr, Cor-Bon 230 gr, PMC Starfire 230 gr, Hornady Critical Defense 185 gr, and Taurus 185 gr (Barnes copper). The only ones to perform flawlessly, with absolutely consistent expansion, when fired through cloth from a short barrel (3.78" G30) are the Gold Dot and Critical Defense. All others either did not expand at all or were inconsistent. Going to a 5" barrel, the Winchester Ranger, Taurus copper, and Golden Saber move into the good category, too. If you want pictures of the results, I can dig them up.
I just got my hands on some Federal HST 230 gr (standard pressure) so I will be testing them soon.