While I'm impressed with the AccuBond and slowly switching the 30-06 over to 180-gr. rounds, I also admit it's hard to give-up on the proven Ballistic Tips for deer and Partitions for elk.
The Partition is an outstanding round as well because it's really two bullets in one.
Seems that the front part of a partition has similar bullet construction to the excellent Solid Base design and that is what I like about Nosler's Flagship round:
1. Front Portion: Ability to fragment like a Solid Base with a hammer-effect causing shock - penetrating 7" to 10"
2. Rear Portion: Ability to keep on going like a Failsafe or Barnes X.
Partition
No other bullet provides the best of both worlds, with the
AccuBond being the ONLY design I know of that has similar results (to the Partition). They sure must have done some tweaking and fine-tuning during the 4 1/2 years of research and development.
AccuBond
http://www.nosler.com/partition.html