I have some RBCD in various calibers and range-fired .243 several years ago but the accuracy wasn't good enough to take it on a deer hunt.
I settled on Federal and dropped a Buck at sunset the closing day of the season; the shot from 105 yds. was just above the right shoulder straight through the lung. That was the last time I went deer hunting.
As for the .9mm RBCD, which is supposed to be standard pressure, it seems to me that 2010 fps is quite "hot" for the R9. It may be all right but I wouldn't use it. The price on it 5 years ago was quite high but it must be off scale now. These are just my thoughts with no scientific basis to them.