RE: 270 WSM
I have a stable of many....I love my rifles!!! I have a 300wsm and a 270wsm. I have used the 270wsm for about five years now and it has become my "go to" rifle. It has worked quite nicley on whitetail, muledeer, and pronghorn. Longest shot was 320 yards in 05 to take a pronghorn. It is a fine operating rifle in the winchester model 70 featherweight configuration and seems to like most everything I feed it. I have seen ammo in nearly every Walmart I have I been in. Besides I have never had to buy any ammo when out in the field. Just go prepared.
Buy what makes you happy. There are many fine cartridges that will get it done for you.