I just got a T/C Black Diamond XR and mounted a scope last night on it. I bought the Quick-kee steel low style weaver mounts that are made for the rifle. I then mounted a Bushnell 1.5 X 4.5 32 mm Dusk to Dawn Shotgun/Muzzleloader scope. I am impressed with the clearity of the scope. I have not had a chance to shoot it yet, but was sighting out the window at Dusk and was surprised how far I could see into my woods.

I will be able to tell you more about how dependable the scope is after I put a few rounds through it.... Until then you can look at scopes and decide how much you really want to spend on the scope. That will give you an idea of the brand and features you can get...

Good Luck with the new rifle.