Se kilde til Diskussion:Joule

==Joules and Joule creep explained==
Now, lets apply the above variables of bb weight to these three situations. We know from basic science that heavier things accelerate slower (F=MA). So, if we take the over volumed setup that was still getting a Joule rating of "x" but wasting air, and we throw in a heavier bb, the heavier bb will accelerate slower (F=MA) which means it will stay accelerating in the barrel longer, using up some of that extra air resulting in a higher Joule output. The reason I bring this up is because, while Joule creep isn't as prevalent in AEGs with cylinders that restrict the maximum volume of air, it is much more common in HPA (or even GBBR) setups due to the abundance of air/gas volume coming from your tank (or gas reservoir).

This means that, with a P* FE for example, you can purposely (or accidentally) over volume your system so that it shoots 400fps with a .20 BB but wastes a lot of air after the bb leaves the barrel. Because it is wasting air with a .2g BB, a .3g BB might make the setup still shoot 380fps (for example) since the .3g bb accelerates slower than the .2g BB and uses more of that wasted air. This results in a higher Joule output with the heavier BB at the exact same air pressure setting (psi). This also means that if a field makes everybody chrono with .2g BBs that player would have clocked in at 400fps and 1.48joules, right on the money. But out on the field when he is playing with his .3g BBs (not the field provided .2s for chrono) he would clock in at 1.98 Joules, a significant increase. (1.98 Joules is roughly 465fps with .2g BBs for your reference, so he is now 65fps above the field limit but he didn't change his regulator settings at all).

https://www.airsoftsociety.com/threads/joules-and-joule-creep-explained.123903/