In simple terms, joule
great vid, i use an aeg but its good to know more about the sport
very nicely explained
Thank you! Now they will not say I'm a liar!!
So, sorry if I missed this in the video but, what would be the best way to combat this issue? I know you mentioned reducing the inner barrel length but are there any other ways, and if not how might I find how short I should cut the inner barrel or would I have to resort to guess and check working my way down?
Edit: Specifically for a gas gun I mean.
Is there a 1J limit in the uk like in ireland aswell?
Garrett brings out the
Excellent Explanation. I sent the link to this video to several people I know and even posted it on my Facebook page. I think more fields need to start using Joules to chrono.
So if my scorpion evo can lift the 0.46 bb’s it would should further? Confusing but chrono is always with 0.20bb from field even bolt snipers and such.. using 0.28 right now at half hop or so
how did u calculate the jouls
That's why you need to wear protection.
Don't play if you don't want to get hit.
Cheaters will be cheaters. Even if you do it by joules if the players will not follow engagement distance somebody will still get hurt.
I am dividing to pick up a 2.8 joules spring or a 5 joules spring from novritsch.do the 5 joules spring harder to pull back the bolt or 2.8
This video was meant to
Mate.. energy is constant because this is how physics says. The amount of energy that goes into a system will have to leave the system, as is or transformed.
In this case the energy is the correlation between velocity and mass(probably there is a small amount of energy that bleeds out as heat... but let's keep it simple).
Theoretically a gun that shoots 400fps with .2g bbs will have aprox 1.5j. If you put 0.3g bbs in the same gun you will get around 328fps so the energy remains constant, at around 1.5j.
There are many problems with gas guns and HPA because :
- No one can control perfectly the amount of energy that goes into those systems. The gas regulators will let some gas to escape into the barrel in order to propel the bb but those are not very accurate systems.
- On top of that the propane for example will have probably 100psi at 40f and 145 at 90f.
- When you measure the speed of a gas or HPA system with 0.2 there is a big chance you'll get only part of the picture. You will certainly have a lot of unspent energy because that very light projectile will leave the barrel way too fast in order to capture everything. So you'll probably have 1.5j gun when you measure it with 0.2g and a 2.2J one when you measure with 0.4g bbs .
On the other hand an electric airsoft gun will have 60cc of air no matter what because the volume of the cylinder is fixed.
Great video Khang!
Very informative video. However, what you say at 3:11 is incorrect. The amount of energy in the BB is not constant throughout flight - In fact it varies more than FPS does throughout flight. Kinetic energy is defined at K=(1/2)(m)(V^2). So a 5% decrease in velocity actually results in a 10.25% decrease in kinetic energy.
Other than that point, great video!
Nice. Sharing this. Erik's polarstar at the start lulz.
So going off what you said, I would assume that if you had a standard bore in your gas rifle (say 6.06) then joule creep won't cause as much of a significant increase to the rifles muzzle energy because the wider bore means more of the gas can escape past the BB. Therefore the gas will have less time to accelerate a heavier BB as it can simply pass it, granted joule creep will still be there regardless but won't be as dangerous.
Also here's a thought though, would joule creep also affect HPA guns as they use a similar form of propellant?
Video was super useful btw, I'm getting a WE L85 in a few days and I can now use this knowledge to educate others.
Nice video,when will you put up more gameplay?
I'm really struggling to decide between this and the ICS L85A2, any suggestions?
I don't understand why .1 is such a big deal. I barely feel the difference. People at fields need to chill. I don't own hpa but I don't see a problem with it
370 fps will not imbed a bb into someone's skin....i shot myself point blank with my pistol shooting 350 to make fun of someone crying about being overshot by someone else and it broke the skin that was it, from maybe 6 inches away.
you had any experience with wide bores, as ive had my eye on one of those orga barrel sfor me we m4, wondering if they would be any good, also what bb weight would you reomend for a wide bore
Super informative, thanks!