The only experience I have had with any of the wsm cartridges was my cousin's model 70 300wsm. He's an avid shooter and a fine shot. Couldn't get that gun to group less than 4" at 100 yds. He did everything he could think of from changing scope, mounts, both, went as far as taking gun to Winchester authorized 'smith and they wound up sending it back. Winchester said the gun was fine and did not shoot outside of their acceptable limits. Since then I have been kind of leery of them. I'm not saying they are all bad, but I don't think I want a deer rifle that 4" groups are "within the acceptable parameters"