I need something in a variable power and have narrowed it down to the Bushnell 3200 5-15x40 tactical and the Nikon Buckmaster 6-18x40. I wanted a mil dot and exposed turrets but the moa turret and mil reticle is confusing me. My rifle is a 243 and will be used for hunting and paper punching anywhere from 50 to 600 yards. Also the scope needs to have good low light capability. Which scope will work better for this type of use?