I use and like both Bushnell 2-6 and Burris 2-7. The Bushnell has fixed eye relief and narrowing field of view as you increase power, while the Burris has fixed FOV and decreasing eye relief as you increase power. Pick your poison. I also had a fixed 4x Swift for a while that was pretty decent. If I had to buy another of these three, it'd be the Burris.