We were hunting croc, skirting Lake Kariba about 75 yards inside of shoreline we woke up a large bull hippo that was taking a nap, on the other side of us. Leaving us between Mr. Hippo and the water... not good. I had a 250 Socom up the spout, and did not wish to draw too much attention to ourselves, there was no time to change rounds out. At 15 yards I took the shot between the eyes with the 250 at 2900 fps, and the bull dropped like a sack of rocks. Upon inspection brain matter had squirted out both ear holes 6 feet. Skull was cracked all to hell, and impact of that bullet was devastating........ None the less, I loaded quickly, and put a solid through the shoulder for insurance before approach, that bullet went all the way to the far rear hip after completely traversing the hippo, and busting heavy bone all in between......