leupold or redfield . I have used for 20 + yrs the vari x 111 in 1.75 to 5.5 power. before that a weaver variable in 1.5 to 4.5. I would think 2 to 7 power would fit the bill. the lower the power the wider the field of view, something that is worth considering if you hunt in brush and or need to aim and shoot in a hurry. whatever you do get good bases and mount it correctly.