Not sure of the limit but it is rediculasly high if I remember correctly. Have managed a bit over 800 fps with a 14.3 CP @ 70 deg. with a 24 inch barrel. Not at the limit yet but tore the gun apart a couple of months back to make more mods and see what I could do about getting closer to it as well as make it look better. I So there it sits in many pieces like so many other things cars, guns, vacuum cleaners ect. at the moment. Someday I will feel better and get back to all of them? One can always hope.
I used to have a life. But now I have the forum. I am a sick man?