I have shot several whitetail deer with 9.3x57 Husqvarna.
All were basically broadside double lung shots, 20-65 yards range.
None of the deer were large (120-150 lbs). None required more than one shot and all had complete bullet pass through.
The bullet I use is the Prvi 285 grain rnsp @ 2100 fps.
The entrance wound is just a bit smaller than the bullet diameter. Exit wound has been the size of a quarter. Very little meat damamge, just a couple of holes in the ribs.
Good blood trails that start immediately and have gone between 20-60 yards.
I have tried the Speer 270 grain bullet in test medium but not on deer. This bullet acted like a varmint bullet during my tests. Rapid, violent expansion and explosive fragmentation.
The Prvi bullets I have tested expand evenly and retain 90% +/- of their weight.
I have toyed with the idea of cutting a few longitudinal slits in the jacket just below the exposed lead to give a bit more expansion but have not done it yet.