I couldn't confirm that for sure but, if it is true, it certainly applies to every other higher than average velocity caliber available at the time. Thank goodness for premium bullets! Without them, there wouldn't be the number of WSMs, RUMs, RCM, etc.. out there as we have today. I haven't been to Africa, but I've noticed nothing but solid performance on game shot here. I will say that I use only Partitions, Barnes TSX, and Nosler Accubonds.