JMJ,
As far as the scope is concerned, don't do what I did.
I bought a Nikon Monarch X 2.5x10x44 with a 30MM tube. Great scope and I really like it.
I mounted it in a Deadnutz game reaper 1 piece low mount. Everything was great until I went to eject a round.
The large windage knob made contact with the spent case as it was coming out of the chamber and would knock it right back into the chamber
I moved the scope a little forward hoping to correct the problem, but it didn't help. So, I decided I would have to get higher mounts. In the mean time, I kept shooting it and learned how to sling the shell free with a quick flip of both wrists while pulling the bolt back.
This idiot decided to leave it as is, since it shot so well, and was so comfortable in the original set up, I hated to change it.
Just make sure if you buy a scope with turrets and mount it really low that you have the clearance to eject spent shells. Bring an empty with you when fitting your scope.
Best,
JM