This has been rated as one of the best Rifle scopes out there. From 3-gun competition, tactical applications, or close range hunting, the new Cronus BTR 1-6×24 is just what the doctor ordered. The ATSR2 SFP IR MOA reticle is specifically designed for 3 gun competition. With hold over points for both bullet drop and wind compensation, using a Nato 5.56/.223 caliber rifle (68 grain hornady and 69 grain sierra cartridges). The 1.4 moa red dot is perfect for zeroing your rifle scope at 200 yards and the open centers below the center red dot are for targets at 300, 400, 500, and 600 yard. The unique design of open centers eliminates target obstruction with 12~18 inch targets beyond 200 yards, allowing a shooter to take a quick shot. The openings on horizontal lines below the center are specially designed for holding over 5 mph and 10 mph wind.