i am at the range all the time with guys firing shoulder cannons, trying to sight them in, can't hit s**t, but something you can shoot afford to shoot a lot won't blow your shoulder off and has the umph to kill whatever size game you are after, you may need two rifles, if you are hunting big bears you want a big gun. My good friend used to hunt polar bears with 223 and 243 whichever he could get bullets for, until one charged him and it took two weeks to wash the 'crap' out of his walrus suit with snow in 50 below, now he hunts bears with 7mm and keeps the smaller calibers for smaller game. A 16mm bolt needs at 16mm wrench, hunting is not much different. There is a right tool for everything and its not always the same tool.