A work of art and far to pretty for me to shoot for sure! I have no doubt those heads would kill a buffalo, the problem is getting it through the ribs and still penetrating quite a lot of buffalo after that. I found out very quickly on buffalo that penetration isn't the only thing, but without enough of it, nothing else matters. I guided one guy who is a fanatic when it comes to knapped heads and selfbows and used them both in Africa and elsewhere, he said he would not attempt shooting a water buffalo with them. I wouldn't guide someone using that combo unless they agreed it was fine for me to start putting .416 diameter holes in the buffalo IMMEDIATELY if "I" saw there was insufficent penetration. The reason I emphasize "I" is that hunters almost always see the shot as being better than it was and when you start shooting anykind of projectiles at buffalo, you need to have the plan well prepared, before it happens, because things sometimes happen very fast afterward. I would suggest the best plan for shooting a buffalo with a selfbow and knapped head would be to start with one that is already dead and see how that goes!