I am running a 7mm with 165 gr nosler parts. I have only taken one elk with it but at 250 yards breaking both shoulders and exiting i am quite confident it will do the job. Its a top notch elk cal in my books. My bro picked up a .300 that has been collecting dust at his place, I am thinking of beg, borrowing or stealing that off him for a season to see what it has to offer.