Fit, of the hand, or the stock MATTERS!
Knew one fellow, ages ago, had a .300 Weatherby "Custom". Fantastic beast of a rifle. It was his caribou rifle and he hunted with it for several years. One time he took it deer hunting, came home day 3 of the season. With a nice deer, a cut over his eye and the whole side of his face black and blue.
Opening day, the deer jumped from a bush about 30 yds in front of him. He snap shot the deer (and got it) but the rifle beat him severely, because he didn't mount it properly before shooting.
Shooting even a fairly light recoilling rifle with your shoulder against anything so there's no "give" can be a painful experience.