[Texasfirearmfan]

If your looking for a rifle that can take both small and large game, then you truly are limited to certain calibers. people are going to tell you that any caliber will take large game, they are going to say a .22 can kill a bear; and there are right a .22 can kill a bear along with anything else you shoot with it, but there is a reason other calibers were designed. for large game (elk, bear, and such) i would consider a 7mm Rem mag. i have experience with the caliber and can honestly say that it will make a good, long range, small and large game rifle. people will tell you that using a 7mm on small game would be overkill, but when your buying a rifle for both small/large game, its always going to be overkill/underkill to someone, it all depends on what your comfortable shooting. my personal load out for large game is:
RIfle: Remington 700 BDL 7mm Rem Mag.
HANDGUN: S&W 629 .44 Magnum

For small game my Loadout is:
RIFLE: Remington 700 .243
HANDGUN: Ruger 22/45 .22Lr
No caliber is perfect but this is just my 2 cents on the subject.
-Corey