I've haven't fooled around with any of the WSM's or the 280 for that matter.I have a couple 270 Wins. For deer I have a hard time finding any better.The 7mm RM is another fine cartridge and ammo can be found anywhere if needed.I'm sure the WSM's are fine cartridges.The 270 Win has proven to me many times,it can do the job when needed.

Ruger Redhawk