That load will work great for elk. I just clobbered a big cow elk head on into the chest with a 250 speer HC at 50 yards. She turned and fell. The bullet did loose it's core ( your NP shouldn't) but it wasn't until it was about to come to rest under the hide.

"If all the good luck and all the bad luck I've had were put together, I reckon it'd make the biggest damned pile of luck in the world." Charlie Goodnight