The BSA Sweet 243 AO is calibrated for the .243 55 gr 80gr and 100gr bullets. This scope features a long eye relief for comfortable viewing an adjustable objective as well as the preferred duplex reticle. The Sweet 243 comes standard with 2pc weaver rings and fully coated anti-reflective lenses. - Bullet Drop Compensating Turrets - Fully-coated emerald lenses - Adjustable Objective - All Aluminum one-piece main tube - Waterproof shockproof and fogproof - Includes 2 pc. weaver rings - Finish: Matte Black - Waterproof: Yes - Weight: 22.3 Ounce - Tube Diameter: 1 - Power Variability: Variable - Minimum Power: 3 - Maximum Power: 9 - Adjustment Click Value: 1/4 MOA - Adjustment Type: Click - Lens Coating: Fully Coated - Warranty: 1 Year Limited Warranty - Reticle Focal Plane Location: 2nd - Parallax Adjustment: 7.5 Yards-Infinity - Fog Proof: Yes - Shock Proof: Yes - Objective Lens Diameter: 40 Millimeter - Eye Relief: 3 Inches - Field of View @ 100 Yards Minimum Power: 34.2 Feet - Field of View @ 100 Yards Maximum Power: 11.5 Feet - Maximum Windage Adjustment: 35 MOA - Maximum Elevation Adjustment: 35 MOA