Re: .270 WSM
I've shot a little of the HSM ammo loaded with Bergers out of mine and it is decent but if you want a 270 WSM to shine you have to reload.
I shoot 140 Bergers at 3300 and 140 Accubonds at 3341 and it will hit with authority out to 785 on deer I know so far and I dropped a couple elk under 400yrd with chest shots with the Bergers, I like it way better than the 300 WBY I was shooting before.
I also load 110gr TTSX at 3670fps for coyotes, haven't shot a deer with them yet though, coyotes don't twitch, I hit one back a little bit and it was DRT, I haven't had a coyote move yet when hit with the little TTSX.
In my experience the 270 WSM correctly loaded will run with the larger 6.5's as far as ballistics to some where in the 1000yrd range unless you run some of the custom Wildcat 169.5 gr bullets then the 270 WSM will run away from a lot of stuff.
I like 270 stuff but the 270 WSM is very awesome for hunting!!