had a simmons atec for about 6 or 7 years.....great scope for the price...back then....now days I would go with a lower level Nikon and be a whole lot better off than an Atec. That being said, I have always had great groups, zero held great with Leupold mounts....now its blurry when you zoom in. Im not impressed with Leupold or any other 'high end' scopes. I do however LOVE LOVE LOVE Nikon.....looking at getting a Nikon Buckmaster to replace it while Bass Pro still has their 6 pay deal.