I am getting ready to order me a stock for my Savage 110 7mm Rem Mag,and Numrich has two versions of some .One is a Magnum,and it says heavier barrel channel..Mine does not look heavy too me,but I don't have another to compare with.Would mine take the magnum stock,or standard? Does any one know the diameter of either magnum,or standard barrels at the point were they exit the barrel nut,and then again a little further up the barrel? I appreciate all advice. Thanks