In my experience on African PG, a well contructed, heavy for caliber bullet (swift A Frame, Norma Oryx) pushed at a moderate speed worked best.
i did some Berger ballistic program comparisons on some better bullets and to be honest the old Nosler Partition 180 gr. hung right in there with all the bullets i compared ,so i will still use the old killers Nosler Partitions 180 gr. besides i have plenty of these bullets i got given to me free from an ammo company many years ago. thanks again from all of the positive post,Pete53