I have never fired a WSM so don't get Mad!
I have read and talked to several people who have had
Exposure to the three available rounds and it seems
That in relation to their "power" they present more recoil
and larger group sizes i.e. double (2" - 2 1/2" Plus).
I met two 1000 yard shooters at a Gun Flea market
recently and they were crazy about the rounds, but
were shooting custom made guns (26" barrels).
Here goes - Too much powder for a short barrel (24"),
in the current factory Guns available.
A 300 Win Mag normally is in a 26" barrel and has a
big following.