James, I've made my living in the Yukon guiding hunters, trappers, and anglers for 30 years now. Your 7 mag is a great rifle....it will do anything needed in Yukon except make the legal requirements for bison.....those requirements are dumb IMO.......a good 12 or 20 gauge is nice for birds. We have great upland bird hunting here....I've seen flocks of ptarmigan that easily number in the many hundreds! I never carry or use 223-243 etc. Even on the trapline I prefer a heavy rifle or a 22 ......good luck to you, you are coming to one of the best locations on earth if you like hunting, fishing and the outdoors!
