I've killed over 30 elk with the 160 Partition out of a 280 RCBS. Ranges from 50 to 600 yds. Have also killed elk using the AB, I much prefer the partition especially at shortest and longest ranges. I like how the nose of the partition opens up at long range. Its base punches through at short range.

They say the AB performs like a NP, I've not seen it. I don't trust the AB for a shot up the six either.

For large mule deer or elk at any angle the 160 will better the lighter ones in penetration in my experience.

The 175 NP at 2,800 doesn't slack either. The 280 AI can handle that bullet great too. Don't overlook it.