How about some data to back that up or is it just your 16 years of experience on this earth that you are speaking from?

I personally own .243WSSM, 7mm WSM, 300 WSM, 325 WSM. Getting ready to buy a .25 WSSM and have shot them all a whole bunch of times.

My favorite of the bunch is the .325 WSM. It shoots flat, and has very good ballistics. Kinetic energy equal to a .338 with less recoil and a lighter gun with a shorter action.

The WSM and WSSM are both new technology rifles that were based on the original short action theories. They came up with the .308 based upon the .30-06. They wanted a more reliable round that would chamber better, shoot flatter, and work off of a shorter action stroke which in turn accounts for higher rounds per second on target. The new WSM and WSSM's are no different equal, or in many cases better, velocities and knock down power with less powder, less recoil, less rifle weight, shorter action length, and less overall rifle length.

In my opinion the person asking the question would be served just fine from either the .325 WSM or the .338 Win Mag.