Personally, I am against such rifles for sports hunting of any kind. If you are an experienced good skilled hunter, you certainly don't need a semi-automatic rifle, especially one in most modern military calibers. I have shot a good number of deer, big bull elk, moose, in Montana, where I was born and raised, and here in Oregon too, and for each, needed only one or two shots; no more. I believe, as the late great Elmer Keith believed, that big game should not be shot with hyper-velocity needles, such as the .223 caliber, and similar. That caliber was designed specifically to tumble upon contacting tissue, for warfare wounding. I am convinced that most people who like, enjoy, and use military type rifles for hunting game, are inexperienced hunters; mostly young and naive.