[SiliconeSword]

I put an airsoft barrel on an airbow I made and got 39J.
That's above the speed of sound with a .48g BB.
Funnily enough, the BB reached a building 110m away barely faster than a 3J gun with the same ammo.

 

[SiliconeSword]

No such thing as too hot as long as your MED takes it down to 1J at that MED

 

[SiliconeSword]

.45g will be a lot better than .40g, you'll be amazed, but .48g compared to .45g is like 30% of the awesomeness as the step you're taking.

I think I'll buy some .50g and see how those go too.