I own them all. Inherent accuracy, there is no difference to speak of. You ability to shoot one better than the other, that's another story. I shoot the Compact just as accurately as I shoot myUSP, Tac, Expert, and Elite when shooting from a rest. Off hand, I do a little better with the better sights and longer sight radius of the Tac, Expert and Elite, and shoot about the same with the USP versus the USPC. Target sights help these old eyes for sure. The limiting factor is obviously the shooter, not the pistol.