My first HP rifle was a matching DOU 42 K98 that I bought around 1972. I took many deer with it. It was never Bubbaed and I still have it though it is retired. Back then the only factory ammo was the anemic (but effective) 8mm loads from the major ammo manufactures but today you can choose from several full-house factory loads. I have had great results with the 8mm Prvi-Partizan 197gr. SP load.
I now use a post-war Czech K98 mil-surp for all my HP rifle deer hunting. The small area in which I hunt is limited to shots under 100 yds so I have gone back to my roots so to speak.
K98 sights are not the best in the world so you need to take that into consideration also. The sights pretty much take away opportunities for shots in low light that could easily be made with a scoped weapon.
There is certainly nothing wrong with a scoped rifle in .308 for your 1st deer rifle. If you learn to shoot it well before hunting with it you can't go wrong with it for deer. Just get yourself a decent bolt action rifle and have someone who knows what they are doing to mount the scope for you. Put a decent scope on it. Nikon makes a excellent scope for the money. Good luck and good hunting.
"Senator, don't piss down my back and tell me it's raining."