i' ve used the 150 grain on mulies in my 7MM,dropped them all before they took another step. worked fine but i think the bullet broke up upon penetration. there were streaks of bloodshot meat throughout the deer originating from the bullets entry point.

i don' t know much about bullets and generally use whatever i have at the time when hunting. but i think that winchester makes about 3-4 different loads in those " supreme" black boxes, if i' m not mistaken the partition gold load claims to be the best for large animals such as elk.