I mounted a Meopta Optika6 FFP RD 4C in 3-18x50 on my FX Impact 30 CAL. The manufacture specs say the parallax is 25 to infinity but it's not, its 10 yards to infinity which is nice. The illumination works great in daylight also. What an amazing scope. I highly recommend this scope at the price point of $700 delivered. This scope looks better than my Leupold VX3s. I have an Athlon Ares BTR on order for my Cricket 2, curious how it will compare. This is also a $700 price range scope.