Ray,
The 250-grain 9.3 Ballistic Tips were discontinued when the 250-grain AccuBond came out, as were several of the other above-.30 Ballistic Tips. From what I can tell by sectioning bullets, the AccuBonds are exactly the same bullet as the Ballistic Tips except bonded.
I have had the same experience as you with the 286 Partition. A very good bullet but it doesn't expand all that widely, due to the partition being moved forward. It kills deer and doesn't shoot up much meat, but it doesn't kill deer as well as the 250 AccuBond.
I have pretty much settled on the 250 AccuBond as an all-around bullet in the 9.3x62 and similar rounds, as it kills the smaller stuff noticeably faster than any 286 I've ever tried, but also works on heavier game. It has worked very well on big elk and kudu, and I used it on a grizzly last year in Alaska where it also worked perfectly.
