I've used a 300 gr (375) RNSP on cape buffalo and on scrub bull and the 286 gr (9.3) PPSP on a number of water buffalo, scrub bull etc.

Can't say I've seen the difference in the effect on the animal but haven't cut a lot of them out to see how they performed. They seemed to perform adequately however.

Used a 300 gr FMJ on the cape buff as well and it zipped straight through his shoulders including the heart an ricocheted into the distance.