I would go with the 165 gr Partition.

The few elk I have killed (4) with two different .308 lever actions used cartridges with 165 gr Sierra Boat tails or 150 gr WW Power Points. They did good jobs.

I could go also go along with the 180 grain NPT if need be. The 180 gr Partition is what I have used in most of my "06 elk loads for many years.

Gary