RE: Have a huge cougar problem, need advise..
I don't know how legal it is for you to shoot them. But if you are going to do it, use the 30-06. They are big cats and you DO NOT want to piss them off with a smaller round or miss placed shot. They will take you out with one swipe and if you just wound them they will be on top of you before you get the chance to chamber another round.