Thinking about buying a 30 06 BAR. I'm trying to find some info on ballistic comparisons between the 2 guns using identical ammo, proably 150 grain power points. I know the bar uses part of the burning gases to cycle another round but wonder how much of a power loss this contributes. Can't seem to find this info on the web. Is it significant enough to change trajectories and ME's ? Does anyone use both the auto and bolt ? Would like to know which is preferred and how well the auto does after a few rounds are fired. Thanks guys and gals for your time.