Joule Creep - A public science experiment

[Sitting Duck]

With regards to cheating chrono I often wondered at the chrono - no mag required

 

hold gun upright - marshall drops in his own 0.20bb

the bb would roll down barrel stopping just other side of hop up

holding gun at a slight incline to prevent bb rolling forward

 

NOW chrono it - deffo bb is 0.20gms, the hop wouldn't really matter if it was wound right on coz bb stops just in front of hop now

 

Readings should be slightly higher than a gun setup to fire 0.20's with hop on a little but suppose site could allow say 360 - 365 max

as their own 0.20 bb was fired with no real hop/spin on it

 

This would also save people who have their hop set just perfect for say 0.30 or 0.25's having to wind it fully off just for chrono

As a few sites demand zero hop off I am lead to think

 

Really never saw any joule creep on aeg's like I said - but maybe gas - green gas/propane may expand or behave differently as it propels bb

Maybe - and this is just pure bollox maybe when it reaches end of barrel is reacts slightly as it exits the barrel pushing the bb hit the air outside

 

Dunno about CO2 guns - they might also or might not have joule creep

 

Would be interesting to see if the HPA guns have any joule creep as they are using normal compressed dry air - unless they add anything else

so in effect what is being expelled is the same stuff an aeg fires so to speak

 

If so then in "theory" if HPA's didn't suffer creep then it would point to the type of gas used in propelling the bb

and would point to Gas Guns would only have to watched for creep

 

But yeah end of day the chrono is not 101% perfect but it is a rough basic test to start to ensure we have similar powered guns within the limits of site

Still could run a hot gun but that would mainly down to deliberate cheating rather than some gas guns having a bit of creep