RE: Whitetail Deer Rifle
3030win, not trying to bust your chops but the 30-30 Win is not perfect for anything, even though most rifles chambered in 30-30 make fine door props. Ballistically, factory loads the 30-30 Win are anemic at best and handloading can't improve performance much because of the 30-30's thin case walls. Winchester 94's and Marlin 336's are not beginner guns, nor is any other firearm that has a hammer. Yes, I know that the newer models have hammer-block safeties but young excited thumbs continue to slip without the safety being on. Lastly, those type of guns chambered in 30-30 Win are strictly one trick ponies; short range.
muzzy 125 "if your hunting open area,then the 243 is great.
if not 7mm08". Huh? What exacly are you saying here? Are you saying that the 243 Win is flatter shooting? Not really since the 7mm-08 can shoot 140 grain bullets at the same velocity that the 243 can shoot 100 grains.
A bolt action rifle in 243 Win, 260 Rem, or 7mm-08 would do nicely. Why did I leave out the 308 Win? Well in short, light rifles the recoil of a 308 can be enough to discourage a young shooter. I would stick with short actions just because a small shooter would probably be able to handle it better.