"Compared to Taylor's writing, I would have to come to the conclusion that Bell was a wanker." –Surely you jest! Taylor was a devil-may-care poacher during his African hunting years. He, unlike WDB Bell, did not keep meticulous records, nor did he have a plethora of reputable hunters verifying his nature and activities. While it would still be a problem in Africa (though not London), Taylor was driven out of Africa partly due to his homosexual reputation, but also for his poaching facts. I cannot imagine what writings you are referring to for either man. Read Bell's "The Wanderings of an Elephant Hunter." It is utterly detailed, interesting, and covers hunting in many areas virgin to the European. You clearly haven't read it, yet.
Yes, Taylor loved large calibers and double guns. He was never, by anyone's account the extremely skilled shooter or expedition boss that Bell was universally held to be. You clearly liked "African Rifles and Cartridges." Bell thought you should use only as much gun as you need, to save your body and keep costs and weight down. He often hunted meat with a rifle chambered for .318 Westley Richards, stout enough. I'm with Bell on that. Bell certainly owned several large caliber rifles, and used one, a .458, to shoot down an Italian plane during his air service in WWI.
W.D.M.Bell was an extremely reputable man, and his hunting/adventuring was well attested by rather esteemed friends who had hunted much with him, including: Harry Rayne (later District Commissioner of British Somaliland; FDR cousin Gerrit Forbes (who went on Safari with Bell three times); and, Townsend Whelen, who was a personal Friend of Bell's. Bell's fortune (and records of it) from the hunting of Ivory are public record. (Taylor's record...of anything except stories and gun reviews?)
"More game, less shooters, and a different moral code"? Of course there was more game. Moral code? Bell and Taylor were both market hunters. Bell, though, was generally hunting to feed his African followers as well, as he made forays into remote area full of endless tribal and colonial war. Morals? Bell was hunting in Africa (man-eating lions for the Uganda Railway) at the age of 16, which is eight years before Taylor was even born, fought in the Boer war, returned to ivory hunting in Africa two years before Taylor was born, and unlike Taylor, wasn't known as a booze hound. He returned to Africa as a pilot for the RAF during WWI, serving as a successful fighter pilot in France and Greece, too, receiving the Military Cross with Bar. Retiring to Scotland he was one of the many Brits who put their private sailing yacht into service to evacuate the troops from Dunkirk. Wanker, indeed!