Hi all,
I bought a TAC41 on the weekend and put a 120n spring in it, variable mass piston and airbrake cup. I didn't have much time to play with the different weights and length of the airbrake so I guessed.
I used 2 steel and 1 aluminium with the middle size airbrake. This gave me approx 2.5j and 345fps using a .45bb
Just now on my very short lunch break I changed the airbrake to the long one to try reduce it slightly but it went down to 1.6j
What setup do I need with the different weights for the piston and length of airbrake to get 2.3j so I'm within the limits.
Thanks
