Just got a .22 fx m3 compact, I retuned it back to stock tune (ist reg, 150, second reg, 70, 16 on the 2. And 5 and a half turn) and it shot 803-808 fps very consistently on the jsp 18.1 grain. Is this normal? What's the best speed for the 18 grains? I know these are basic questions but bear with me as I'm very new to the Hobby. Thanks for any feedback
FX Fx m3 compact
- Thread starter thunderxt1
- Start date
Set second reg to 100 then tune those 18grn to 880-900 used to have the compact n this worked best for me
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There's a plethora of tune info out there. My 700 m3 did the best with 18 jsb at 130 bar on reg 2. There's entire tune sheets on the web for what you want to do.
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.22 caliber using JSB 18.13gr pellets, a common baseline tune includes:
- Regulator 1: 150 bar
- Regulator 2: ~120 bar
- Valve Adjuster: Line 4 position
- Hammer Spring Wheel: Setting 3
- Power Wheel: Max
- Expected Velocity: ~890 fps1
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