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  1. MajorSylvester

    Tuning Should FX recommand not to install the Slug Power Kit on the Impact M3?

    Hello, Maybe I'm wrong but I think the slug power kit just do not work on the M3, except maybe the pin probe. Here is my logic. 1- The rubber ball is reduntant with the already existing 2 captives rubber balls in the M3, adding a third will reduce power, not increase 2- The valve spring is...
  2. MajorSylvester

    Tuning Impact M3: who cares of the macro number and micro weel?

    Hello everyone, this is just an hypothesis I want to confirm : apart from reg 2 pressure and the number of lines on the valve knob, the only meaningful indicator if you want to correctly define a given tune is the graduation readings on the Quick Tune System. Since for a given graduation...
  3. MajorSylvester

    Tuning Impact M3 700 mm sniper: very very low slug velocity.

    I have an impact M3 .22 cal 700mm, Sniper Edition, heavy slug liner for high power shooting 34 gr slugs at 200m. It worked reasonably well and lauched the 34 grains @ 922 fps with p Reg 2 = 150, spring tension reading 4.7 and valve fully open: 1 turn after the 4th mark. I got .8 MOA accuracy...