I've only owned two .45's. The first was a Springfield TRP (wish I still had it) & I just bought a Kimber Pro CDP II yesterday.
The Springfield shot quite low when I bought it new. I sent it back to Springfield & they returned it shooting dead on. They didn't actually shoot it because they said there was so much snow on their range they couldn't get to it. But, it shot great after they worked on it.
The Kimber I just bought shoots low & to the left. I can correct the windage myself, but would really like to get the point of impact raised. The shop I bought it from told me that Kimber would charge me to correct the problem.
I guess the real question is what do the manufacturers consider to be satisfactory? The gun shoots several inches low at 7 yds. plus a a bit to the left. These are the only 2 handguns I've ever owned that shoot consistently low. I've verified that the Kimber shoots low by having better shooters than me try it.