I have the .30 FX Bobcat MK2, and its a great gun. I fill to approx. 250 bar, shoot down to 160 bar (where my regulator is set), and get 4 magazines (36 shots) before it goes off reg. I'm getting about 78 fpe, and 885 fps with the JSB 44.75 gr. Exacts. I have the Ronin on my Bobcat, it makes it very quiet, and also reduces the small amount of muzzle flip. I did end up going with a HUMA regulator (VERY easy to install), since I bought my Bobcat used and the FX regulator was set around 145 bar, and it "wandered" from 140 to 155 bar from time to time. Plus, I was only getting about 850 fps. As is, its a tack driver out to over 100 yards, haven't shot longer than that at the range but have taken ground squirrels at longer than 100 yards.