For any of you guys who are intrested,i shot 100 rounds with my Fac Airwolf in 40 fpe through the chrono and this is what came out my CED chrono
shot=m/s started with full 500cc reservoir 250 bar after 100 shots 150 bar left

1=259 11=263 21=267 31=273 41=273 51=278 61=280 71=279 81=276 91=273
2=258 12=263 22=266 32=274 42=275 52=278 62=280 72=277 82=275 92=272
3=258 13=264 23=269 33=272 43=274 53=278 63=278 73=278 83=276 93=271
4=260 14=265 24=267 34=273 44=275 54=277 64=278 74=275 84=275 94=269
5=261 15=264 25=265 35=273 45=274 55=279 65=279 75=276 85=273 95=270
6=260 16=266 26=270 36=274 46=276 56=279 66=279 76=276 86=273 96=269
7=261 17=266 27=270 37=274 47=275 57=278 67=278 77=275 87=273 97=269
8=261 18=266 28=269 38=274 48=277 58=277 68=279 78=274 88=272 98=269
9=261 19=265 29=271 39=275 49=277 59=278 69=276 79=275 89=271 99=269
10=260 20=265 30=273 40=277 50=277 60=276 70=274 80=274 90=273 100=266

I am pleased with my Airwolf ,i shoot 100 meters at my gunclub(indoor) with it and with my Leupold on it it shoots 5 shots in a 4 cm area.
I use H&N barracudas