Dave King: Thanks for your reply and insight. I will try to give you a little more info. in case you want to expound even more.
I neglected to mention that my .30-06 is a semi-auto (BAR). I like it a lot, but I'm pretty set on getting a bolt action, as obviously, it would be inherently more accurate than the BAR.
Presently, and most likely for the duration, I don't shoot that much, other than pre-season zeroing and occasional light target shooting. So, I don't think I'd really need to factor wearing out a barrel in my decision.
I would probably consider myself a "point blank" shooter; my present scopes are all your typical hunting-type variables, without any range finding/reticle adjustment capababilities. However, that could change with the purchase of a scope to accompany the new rifle (if it gets to that point, I will then be asking for input on scope selection!).
As an alternative to the 7mm RUM, are there any other factory calibers that you would recommend instead, for my applications? I don't reload, nor have a buddy to do it, so that is why I am really limiting myself to factory calibers.
Finally, as far as this class of cartridge, do you recommend having a muzzle brake
on the rifle? I suspect that at any given shooting session, I would not be likely to shoot more than say, 15-20 rounds.
Hope this wasn't too much to throw at you. I appreciate your help!