and depending on what kind of brass you are running (Barnes data uses Winchester) you can't (in my experience) fit all of that H110 in Starline cases and not deform the hollowpoint pretty badly.
I wrote Barnes about my experience using starline brass and they stated that the Starline brass obviously has less case volume than the WW because they did not experience any of those issues.

The Tech did say because of the smaller case volume, less powder should create the same velocities as the larger case with higher powder charges. interesting stuff!

If you are looking to get rid of those XPBs I may know a buyer!