I have set-up two Marlin XL7s in 30-06
I really liked the way the two that I set up shot. One had a Nikon scope on the other I mounted a Redfield revolution 2x7. I didn't bother to shoot them at 100 yards and just wanted to get the scopes dialed in to as a starting point for the new owners. I do know a couple of guys at the range that shoot 7mm-08 and they are huge fans of it. One guy took his whole family to Africa on safari and his wife and Son shot a 7mm-08. She and his Son had a blast taking several beautiful plains animals with the cartridge. I would plan on spending atleast 150.xx on a good scope for your rifle, it sounded like that was already your plan.