RE: What deer gun caliber?
Call me old fashioned but I like a .308 for deer. I know more bullet than what is needed but you can also turn around if you get the opertunaty and easily hunt larger game such as moose with it.
Plus you can get .308 ammo on the cheep everywhere.
I like your choice of gun. I have had my Savage 110LC for 22 years and it is still one of the most accurate guns in my stable.