Thanks for that advice! I think I could eventually get them on the same trigger, a Timney for example. Frankly, I am fairly certain that there is no way I can get the two matching at this point. Each manufacturer offers something different that I want, so it's just gotta work that way, so it's good to hear that this has worked for you. Right now, it looks like ultimately, I'll probably getting what is essentially (but not exactly) a range certified Weatherby backcountry for the 300. Then probably a savage, maybe a predator hunter or perhaps a long range hunter in 6.5 creedmore or 260 rem.
Of course, that could change tomorrow, but when I look at the ballistics, especially in terms of wind drift, these two match up nicely. I did consider a 308, but the 6.5 just got closer as far as wind goes, and people tell me this is where it gets most difficult way out there.
Anyway, I still toy with the idea of a 223 instead, that low recoil and cheap ammo, and just fun to shoot has real appeal for me. But I may pick one of those up in a year or two for my sons to use for practice as well, so that might wait. But still have not decided for sure.
I am fairly certain that I will not get a 243, however. For what I want, long range shooting, I just can't get the twist I need to shoot the bullets I need to shoot those kinds of distances.