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The BDC SuperSub Reticle is designed for the ballistics profiles of the 300 AAC Blackout cartridge in both supersonic and subsonic loads this reticle offers shooters unique open circle aiming points with additional hash-marks at interim distances. Based on 115gr bullet at 2280 FPS. Features fully multicoated optical system precise 1/4 @100 yd. adjustments generous eye relief 100 yd paralax setting spring-loaded instant zero-reset turret waterproof and fogproof. Mfg: NikonRead More