if its not a recoil thing for ya you might want to try the heavier bullets in your 300wm.for me the 210gn berger shoots great out of my 300wm.even the 208gn A-max.I am also useing 76.0gn of H1000 with my 208/210gn bullet loads.it just might be hard to get the 208gn A-max right now.there is a 208 bug going around the just drives you crazy into wanting to shoot them.and thats mostly in a 308win.