When filling an FX dreamline, the tube says Max fill is 230bar.. is that the rating for just the tube or the valves also?? I have a 250bar bottle on it and would like the extra couple shots from the 20psi 



That's what I meant.. sorryUm..................
The difference would be more like 290 PSI.
20 bar = 290.07547546 psi
https://www.unitconverters.net/pressure-converter.html
I'm not risking damaging any gun.. if the reason the Max fill is 230 because of the tube and the valves in the gun are rated for 250 then it would be the same as my impact or any other gun..You won’t get enough extra shots to bother with.
I would not second guess something like maximum fill pressure. Hy risk damaging your gun for a few extra shots?
And that is all it would be, a few extra shots.
I'm not obsessed with Max fill pressure.. a 250bar Max fill gun is just that.. 250bar.. it's designed to hold 250bar before the regulator valve.. what is the benefit/efficiency of only filling your gun to 230bar if it can be filled to 250?? None...Don't fill for MAX ALLOWED PRESSURE. Fill for MAX EFFICIENCY. Why are people obsessed with maximize fill pressure?
Don't say NONE until you've tried it & run the #'s (as in Revoman's post). Same with ANY airgun I've owned, that's why I know NONE isn't the correct response (in MY experience anyway). There have been many discussions about this here. Didn't mean you personally are obsessed about it but the many relevant posts give that general impression.I'm not obsessed with Max fill pressure.. a 250bar Max fill gun is just that.. 250bar.. it's designed to hold 250bar before the regulator valve.. what is the benefit/efficiency of only filling your gun to 230bar if it can be filled to 250?? None...
Agreed that "none" wasn't the correct word there but my point is only that if 250bar could possibly be available over 230, why wouldn't you want to be able to have the extra air..Don't say NONE until you've tried it & run the #'s (as in Revoman's post). Same with ANY airgun I've owned, that's why I know NONE isn't the correct response (in MY experience anyway). There have been many discussions about this here. Didn't mean you personally are obsessed about it but the many relevant posts give that general impression.
Because if I fill my FX Boss to the full 250 it IS ABLE to hold it doesn't start shooting its best til around 235-240. Why waste air on an inefficient part of its capacity?Agreed that "none" wasn't the correct word there but my point is only that if 250bar could possibly be available over 230, why wouldn't you want to be able to have the extra air..
Because if I fill my FX Boss to the full 250 it IS ABLE to hold it doesn't start shooting its best til around 235-240. Why waste air on an inefficient part of its capacity? Your mileage may vary, do whatever YOU think is best.