I have both a 300 weatherby and a 300 wsm
. Do not believe that the wsm kicks less than a 300 winchester magnum. The laws of physics being unbreakable state that for every action there is an equal and opposite reaction. If both cartridges are shooting the same weight bullet the only difference in the recoil would be attributed to less powder being ejected from the bore. The weight of the powder combined with the bullet (ejecta)is what has to be equalized in the recoil.
For long range shooting I think the weatherby has a definite supperiority advantage over the wsm although both of my rifles are super accurate.
I have not had any trouble with the weatherby freebore, it allows you to seat a heavier bullets base at the bottom of the neck so it does not infringe upon the powder capacity. Also freebore is defined as a longer than normal neck.
I have both rifles set up for different situations. The wsm is for woods hunting where there are a lot of openings that will allow for long shots but I still have a rifle that is quick to put into action, it is a browning stalker witha Burris 3-12 x 50mm scope. My Weatherby is a customized Accumark with a Leupold 4.5-14 x 50mm.