Back to the original concern over Hornady 230 GR HP... I used some in the 185 format bought on a discount deal that came with my Springfield 1911 Loaded. They ran 100%, and I shot about 100 rounds.
Have you fired them at all? I would run some through, experts recommend in the area of 200 over time before you settle on a carry load, seems high, but it's a life choice. You could also have a bad lot, if you have significant trouble, call up Hornady and see if they'll replace them for you. There are other great loads if your USP has a Hornady problem. I'd go Federal Hydrashok, Federal HST, Winchester Ranger SXT, Speer Gold Dot, or with Remington's Golden Saber in a heartbeat. A PD near where I live has mated their USP 45s with the Golden Saber load in 230 grain, and in their rough jurisdiction riddled by violent gang members, it has done what needs doing when put up to the task.
A side note to the GS round is that it was created by the same designer as the Black Talon/SXT sold by Winchester, when he left he crossed the street and went to work for Remington where he made the Golden Saber. It has a very hard pre-scored jacket, also designed to aid in wounding like the talon, and some of the best barrier penetration out there, probably matched only by the Gold Dot from CCI Speer. It can be had in LE bonded form where the jacket is welded to the core, or the more common older version that is unbonded, either is just fine.