This Tasco scope came pre-mounted on a .308 caliber hunting rifle we recently bought and I have been impressed with the accuracy and quality of this bargain priced scope. The scope came "bore-sighted" so was on-paper at 100 yards and it was easy to get sighted in at 200 yards. The scope has held zero through multiple trips to the range and roughly 80 rounds or so. I really like the 3-9x zoom capability, which is perfect for the ranges this will be used.