ORIGINAL: SwampCollie
I think the recoil of the WSM is a little bit less. The of course, depends a lot on the individual gun, cut of the stock, type of recoil pad etc etc. I have shot Browning A-Bolts in both, and thought the WSM was a quicker sharp kick, while the WindBag was a longer whallop.
And the WM should have a bit more kick. It does have more case capacity. And powder wieght is a huge contribution to kick even if both bullets from both guns are coming out the same velocity.
I love the WSM line. Don't get me wrong. Just know,it will not keepup with awinmag. At least thetwo I own. And I too notice the WSM's seem to be easier to work up a load for. Little more dynamic.