I have very little experience with this caliber and have been trying the 286-gr bullets to find one my double rifle in 9.3x74 will throw together, aside from the Norma Oryxs it was regulated with.
The Oryxs are a bonded bullet and I can tell you that they worked very well on this bison taken at about 100 yds. Mz vel was about 2350 fps.
The two on the right were taken out from under the hide on the far side. I apologize for the quality of the pic's. As had been said, at the mz vel of the 9.3s (other than perhaps the x64) most bullets should work well. A double rifle just presents another predicament.