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  1. O

    FX Impact M3... loss of power

    I shoot a FX Impact M3 600 with tuner, suppressor & shoot Nielsen 33.5gr slugs. It was sent in and tuned at the factory (under warranty) in 2/24. When it was returned, the MV was 960 fps. I have shot it a bunch and have not changed any knobs. It now shoots 740 fps. I have checked every...
  2. O

    Making friends at the rifle range!

    I shoot a FX Impact M3 .25g 600mm barrel using hollow point 33.5g slugs I am a member of very nice rifle range and shoot often. When I pull up at the 100y range, there are usually several members shooting their loud high power rifles. After setting up my table, I ask for a "Cold Range ", set up...
  3. O

    How to set up FX IMPACT M3

    HOW TO SET UP YOUR FX IMPACT M3 FOR BEST MV & ACCURACY....... To get best MV..... try.... ...PROCESS TO FOLLOW... 1. Open all adjustments.... Valve adjuster max... all the way out ....5+ rings HS (Hammer Spring) mid...
  4. O

    Indexing & harmonic barrel tuner

    Opinions on this subject, please.... On my FX Impact M3 25 cal with a harmonic barrel tuner, is it necessary to do barrel indexing.... Thanks for your input. Oncall-50
  5. O

    Tuning Tuning FX Impact M3 for MV

    To get best MV..... try.... FX suggests a 30-40 bar difference between the 1st & 2nd regulator to allow adequate pressure fill. ***** 1. Open....valve adjuster max.. all the way out.....5+ rings HS max to ~ #8 Micro to max... #1 2nd reg to 110...
  6. O

    FX M3 will not cock

    I have a FX M3 .25cal and am changing over to slugs. I recently put the power slug kit on this rifle. YouTube was a great help. Problem is... when I go to pull the cooking lever to load the slug, the lever goes to the backstop but will not click to load the slug. There is no pressure release...
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    FX IMPACT M3 26 cal... Nielsen 33.5gr slugs...

    Anyone have good settings for FX Impact M3 26 cal 600mm barrel using Nielsen 33.5 gr slugs?
  8. O

    Tuning tuning FX Impact M3 .25 600mm for pellets

    I recently purchased a FX Impact M3 .25 600mm barrel and am tuning for FX airgun 34 grain pellets. My settings are as follows: 1st Reg = 150 / 2nd Reg = 110 / Macro = 16 / Micro = 4.0 / Valve = 4.5 (0.455" from base). MV = 830'/sec ... measured with a LabRadar........ I desire to get a...