No, but potentially yes. The traditional Fosbury is a hollow point design. I would describe the traditional bullet itself in modern terms as medium hardness. It was envisioned primarily as an all purpose solution for winged, non-dangerous deer and antelope, and the big cats. Of the the Paradox guns that went abroad, most were carried by British officers headed for India. There it was ideal for jungle fowl, chital deer (axis), and tigers. When used on thick skinned dangerous game, one needs a hard cast bullet that will still regulate. I am confident, that given an ideal presentation, I could put a bullet into the crease just behind the shoulder and kill a buffalo with my gun and its current loads. Those are a worrisome preconditions on a modern hunt with limited time.
