Daughter has a Marlin 30A in 30/30 ..... killed two deer with it two weeks ago.
She has a forward mounted 2X Burris Pistol scope on it ...works really well.
I can not for the life of me understand why anyone would put a high magnification scope on a 30/30 ...... If you need anything greater than 4x to see your target, then it is probably too far away to be takin' pokes at with the thuddy-thuddy.
TheGolden Rule of Tool Use: "If you don't know what you are doing, DON'T."