KonusPro-550 Long Range 3-9x 40mm Rifle Scope - Ballistic 550 - The exclusive ballistic reticle, coinciding with the most popular center fire loads today, provides you with a system of reference lines for exact aiming points out to 550yds. Lateral hash marks allow for precise leads of moving targets as well as compensating for strong crosswinds. The glass engraved ballistic reticle is unbreakable, and the multi-coated optics are clear and bright. Waterproof, Fogproof, Shockproof Nitrogen filled For airguns with 7.5 joules of energy or less Coated lenses Lens caps and cleaning cloth included Finger adjustable windage and elevation