Like Bob33, I used nothing but 165s in my 06, when I went the first time. Took Kudu, Oryx, Eland, wildebeeste, Zebra, Impala and Sable. Used the 165gr Nosler partition. On the Eland went from behind the last rib on the left side, to the right shoulder. My wife took her Sable with the 06 and I took mine with the 45/70. Her Zebra was a head on shot at a 100 yds, hit where the v comes together. It turned and ran a little ways and fell over. The Impala, Springbok, duikers, warthogs, are all small animals, and the 180s contructed for bigger animals, like the Eland, and don't always work as well. The 165s will drop them where they are most of the time. I never use 180s in the 06 here, either, as whitetails small and light, and need a quick opening bullet. If I go for Elk or Moose with the 06, might use a heavier bullet. As noted, my Eland shot with the 165, and worked perfect.
