I think everyone should own both..the are both wonderful calibers..the 06 has tons of data available, and a proven track record as does the 308...i reload,shoot, and hunt with both, and neither has let me down if i do my part...it all comes down to personal preference...that being said, do your homework here on the internet...there is a prolific 30-06 hater running rampant on a few forums out here..comparing modern 308 data to pre WW2 30-06 data, claiming the 308 is so much better...if you see this guy..do us all a favor and kick him in the nuts...