On my upcoming DG hunt, I'm only bringing my .470 and am going to give Woodleigh cup point solids as loaded by Federal a try.
Not sure who started the cup point solid thing, but the NF cup point solid in my .470 NE did pretty well on buffalo. I think I've posted this photo before, but for those who missed it, here it is again. Pretty good size hole from a .475" diameter bullet. This one worked for me, but who knows, the next ten may fail miserably.
The heart of a buffalo shot with a .470NE North Fork cup point solid.