FX Tuning the 700mm FX Impact M4 Sniper for 15, 18, 25gr ammo (Video)

Here are my settings for the .22 700mm for 3 Pellets

15.89gr
Reg 90 bar
Micro Wheel 2.0 (about)
Valve Adjust Line 4

18.1gr
Reg 90 bar
Micro Wheel 2.5
Valve Adjust Line 4

25.4gr
Reg 90 bar
Micro Wheel 3.5
Valve Adjust Line 4

From there you could reduce your Valve from 4 to 3.5 and find the point where it changes the velocity. That's the sweet spot on your valve. You can click your Micro roller up and down to fine tune your velocity. I would recommend starting with the Macro on 8, (7 is better), and then 2.5 on the Micro (18.1gr tune) ...4 Macro clicks down for 15.89gr (2.0 Micro) and 9 clicks up for the 25.4gr (3.5 Micro).

On each tune you can experiment with your valve. (Obviously you need less air for the 15.89gr). Just put it back to line 4 if things don't work out.

You know you have reached top accuracy/balance/harmony when your Standard Deviation over a number of shots is the lowest.

Video here:


Advanced Tuning Instructions here: (time stamped):

 
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