Didn't read the thread but the 458 is a grand cartridge and very versatile with hand loading. I have only shot jack rabbits through deer and hogs with one but there is no mistake when you hit something with a 458. I shot a lot of half jacket 350 gr. 458 bullets and some cast. The lighter jacketed bullets are pretty much all around as long as you stay away from the pistol or 45-70 bullets unless loaded down. The 458 got a bad rap when it didn't initially meet advertised velocities and then an even worse reputation when bullets would creep from the heavily compressed loads. Rumors spread rapidly when this occurred during elephant culling operations. In one situation the culler was atop an ele when it came to and the rifle jammed. This is cause for some quick thinking or a pair of pampers. The guy came out all right and from then on put a finisher shot on even moribund elephant.