FX Removable Harmonic tuner

I have good results … first make sure your pellets are flying true and you have a tune with a low SD and ES. Only till you get those down you will have a good idea of how effective the tuner is when setting it up. 


Start with Tuner as far forward as you can and then slowly move it back using the big hash marks and then once you find a good one try with the small hash marks.