165gr for last 20yrs or so. Super accurate in my gun.
I found that to be the same in the .270 Win 130 grain rounds, too much damage. I use 150`s in .270 and 180 in 30/06.Back before I started reloading my own I used 180 gr. Core Lokts as they were the most accurate out my old Rem. ADL 30/06. But found out the 165 gr. had a little better edge for the 06 so I just stuck with the 165 gr. Never liked the 150, always seemed to ruin to much meat.
A bad hit is a bad hit with any projectile...Iv'e seen some slow kills with 180's, with the 150's that never seems to be an issue. Better shoot forward with the 180's.
Quite a bit of external damage difference too.And there is quite a difference in internal damage between the two which explains all that needs explained