The factory focus was off. - Vortex Crossfire II AO 4-16x50mm 30mm Tube Second Focal Plane Rifle Scope

I recently acquired a "used" Vortex Crossfire II 4-16X50mm AO scope with a 30mm body. The optics are very clear. There is high light transmission, and the magnification adjustment is silky smooth. However, the indexing of the distances on the objective bell are significantly off. This scope has range focus registration marks indicating distances of 25, 30, 40, 50, 100, 200, 500 yards, and infinity. Typically, good shooters can utilize the focus ring to help approximate actual yardage to a given target. In my case, the scope appears to have been indexed incorrectly at the factory. A focus setting of 150 yards gave me a clear sharp focus from 500 yards to infinity. When focusing on a target at a known 300 yards, the focus ring indicated it was just over 100 yards distant. Looks like I'm going to be seeing how well they honor the warranty on their product in the near future....