I've had the 4X12X40 AO scope sold at Wal Mart for 2-3 yrs now. Its mounted on a NEF .280. The rifle is zeroed for 200yds. I've never had a problem with the scope and would buy another.
I have a three Bushnell Sportsman models. A 4x32 on a Marlin Mod 60; and two 3X9X40's, one each mounted on a NEF .223 and a NEF Sportster .22 mag. I've never had a problem with either scope.
The Sportsman line is considered below the accepted norm for a reliable rifle scope. I can't say anything bad about them so far and believe the lenses are clearer than any of my Banner's.
EVOC ONE