I think they are here to stay as well. However without more advanced powders, which may come, The short mags can't duplicate the long mags with the heavies bullets. For NA game this makes little or no difference. Any caliber from 6.5 Mauser on up and certainly the 270, 280, 308 and 30-06 with propor bullets will kill big game as fast and cleanly as the Magnum rifles in the hands of a decent to good hunter. There for, the insignificant difference between the short and long mags or the more potent standard calibers does not mean much. A good hunter with a 30-06 or 270 class rifle who know what bullet to use and pratices enough to place his shots well and has a little disipline and respect for the game he chases will have no problems in North America. The ability of a hunter comes down to the hunter rifle team. A good hunter with a bad rifle or a bad hunter with a good rifle will have about the same rate of success. However a good hunter with even a decent rifle will have success every time out. Our forefathers hunted with what they had and kept their families fed. They did it with rifles from 22 caliber to 50 caliber. It was their skill and not the rifle that mattered. Sorry, a little off topic I had another birthday and I am feeling a bit old today.