Use That 165 Accubond with confidence!! The 165 will work just fine. They are pretty tough bullets and I have only recovered one out of 4 animals shot with them, that being a 140 from my 280 Remington on a heavy angle and a larger muley. I have had passthrough as follows. 280 Rem/140AB 250 lb Black Bear, 150 yards slightly quartering away; 8x57/200AB Bull Moose 255 yards, slightly quartering away; 270 Winchester/140AB Whitetail Buck, 175 yards, Broadside. My opinion is that the AB seems to do quite well. Even the one I recovered had just broken the offside hide, but not exited. It weighed 112.5 grains, pretty decent weight retention IMHO. I don't mind admitting I am a Partition lover, but this AB seems to be doing well so far. Regards, Eagleye.