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Hey. Search did not help me so I hope someone in this thread can help me.
I tried to build my m4 as efficient as possible. 407mm barrel, full cylinder. Ratio about 2.3 using .32 bb's.
The result? Less joules than with 3/4 ported cylinder and 407mm barrell. Is it normal to lose fps with full cylinder?
Edit: After installing stronger spring the results seem to be better. Maybe it needed a little more push for it start making magic.
 
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