The bsa sweet.17 sp rifle scope is specifically designed for the.17hmr.This series features side parallax adjustment from 10 yds to infinity, fully multicoated lenses, 3 sunshade, fast focus, 30/30 duplex reticle and elevation turret ballistically calibrated for a 17gr and 20gr cartridges.Includes dovetail rings.Adj Size: .25 MOAMagnification: 3-9xObjective: 40mm AOField Of View: 33 ft @ 100 ydsEye Relief: 3"Tube Diameter: 1"Length: 12.30"Weight: 22.30 ozReticle: 30/30 DuplexParallax Adjustment: 10 yds-InfinityExit Pupil Range: 7.5yds-InfinityProofs: Fog/Shock/WaterproofCoating Type: Waterproof, Fogproof, ShockproofOptic Coating: Fully Multi-CoatedOptic Coating: Fully Coated