All I got to say is the 300 wm has been around along time and the 300 wsm is the same thing in a shorter version. I like them both. I have a 300 rum my wife shoots a 300 wm and my buddy shoots the 300 wsm they all put down game nicely. I don't know if the game feels any of them any more than the other plus all three shoot under an inch at 100 yards.