My gun
I have been hunting the past 10 years with a Win. 270 and I've shot Mule deer, Whitetail deer, and Elk and it works great. Some people like the 300 or 30-06, but for hunting in Montana I love my gun. It doesn't have much kick, it knocks them down, and the shells are cheap, but it all depends on what you like and what your hunting.
Have fun with it.