Selous moved up with gun advancements as they developed... not so much because of power but because the old blackpowder guns were pounding him to pieces. I hunt with muzzleloaders and I've gone after some pretty big stuff with them. We took a 2,200 pound Indian River buffalo with .50 caliber rifles.... but there was a guy with a .470 double backing us up. And I must say, he was pretty damned nervous when we had to go into the bush after a wounded bull with only muzzleloaders to back him up. And that big fellow took a 600 grain slug through both lungs and was still on his feet 18 hours later when we finally brought him down. I'm sorry the bow hunter is so offended and I certainly don't want to leave the impression that I'm some sort of elitist but honestly... you wouldn't go into a dangerous game situation on the ground with a bow or a muzzleloader if you had an option. I can just imagine my reaction on a Cape buffalo hunt if my PH pulled out his BIG BOW to back me up. "Trick" hunting is a poor choice of terms. "Sport" hunting would be better. There is a difference and we all know it.