So this won't be your only one, apparently you already have one/others.

Amazing you would get so much advise (and bickering between cartridges)without anyone asking or clarifying, "What do you already have?" Cartridge spacing just plain makes sense; otherwise, this is howso many American huntersend up with abatch of rifles that are all essentially equivalent to each other when one looks atthe goal of building a diverse and capable rack of rifles.

So, what all is this "new" rifle going to be added to?
If the answer is nothing, then myrecommendation is the 30-06.