i have a tasco-bantam scope on my 870. cost about 70 bucks when i bought it 8 years ago. it was just a quick fix untill i could afford something better, but to this day its has never let me down or needed to be resighted. imy 870 is a cantaliever 23-inch rifled barrel. its kicks like a mule. i guess ive just been lucky. the scope has at least 100 shots on it between deer and trget.