Reply To: FX Power Adjustment Wheel
I have the Fx-400 in 22 cal. My unit is somewhat more accurate at the high power setting with 18.1 gr JSB,s. However the 15.9 gr JSB pellets consistently provide 50 yard groups of 1/2 inch or less. I use low power for English sparrows and starlings off the feeder out to 25 yards and at that distance with either 13.4 or 15.9 gr JSB pellets I get one ragged hole.
My scope is zeroed at 50 yards with the 15.9 gr at medium power which provides a 3 mildot holdover with the 18.1 gr at high power at 100 yards.