Clark, given the parameters you have stated, the wife and kids and you don't reload. I'm guessing you haven't done a lot of shooting or hunting (not a slam). I'd pick the 243 over the 223 and the 7-08, and not worry about all the rest.
Added - I wouldn't pick a Montana for a first rifle either.
Good luck with your choice.
AJD
Last edited by AJD; 02/21/14.
There is no accounting for taste.
Experience is a great thing as long as one survives it.
Generally, there ain't a lot that separates the two however, Barely making it is a whole lot more satisfying than barely not making it.