Have you ever hunted with a 2-7 to give a comparison? Do you find the 3 power (lowest magnification) an issue for close hunting? Have you shot anything 50 yards or less, if so any comments regarding the scope? Finally, do you aim with one or both eyes open?
I shoot a shotgun with buckshot using a fixed 4 power (don’t ask). My shots are all 30 yards or less all in the timber. I have never had any issues with close range shooting. You should fine with 3-9. Practice lots and it’ll come up to your eye naturally. My biggest issues with scopes are keeping them clear in nasty weather. I have a peep sight on my 30-30 that I really like, it’d be my choice over other open sights.