Okay gents, I certainly welcome all responses but I'm hoping to also get some of our PH's thoughts on this question. For all intents and purposes I've started all over again with load development for my son's rifle in .308 Win due to seeing the temp sensitivity of RL15. I'm playing with H4895 and Varget. As fate would have it, I've kind of bumped into a very accurate load and that ancient technology known as the Nosler Partition, a bullet I've had nothing but great results with. On the menu for my son is Blue Wildebeest, perhaps as tough an animal he'll shoot barring maybe Kudu. Is it crazy to think of him shooting either of these with a 165gr NP even at 2600fps muzzle velocity?