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Discussion Starter · #1 · (Edited)
I hope I'm not offending anyone by making this thread.
Making this thread so other threads don't get hijacked about this subject.

Scheck has talked about this on the FB page and now in Geograd's thread ( http://www.airsoftsniperforum.com/32-general-sniper-talk/9824-want-know-your-max-distance-8.html ) and I would like to know more about the subject.

Quote from Scheck:
"I also follow the same line of thought as Geo: the more joules I fire with the better.

THIS is also why I run a shorter barrel, at only 400mm, as shorter barrels allow for "energy creep"

Energy creep is a term that describes why I have a higher muzzle power (joules) with higher weight BBs than lower weight BBs.

What does this mean? Well, when I chrono with .2gram BBs, I'm field legal at 498fps which is 2.26 joules of energy.

BUT when I chrono with .4gram BBs, my muzzle energy is a massive 2.66 joules. That's an extra .4 joules of energy from the same rifle. This rifle is still field legal according to field rules, but has a much higher energy rating now. If I convert 2.66 joules back to .2gram, that's roughly 550fps!

So why is this? I'm not 100% sure, but I believe because the .2gram BBs accelerate so quickly, they leave the barrel before all of the air from the cylinder "gets behind it". Because the heavier BB is more massive, it takes longer to accelerate from 0 and therefore has longer time for greater air pressure build up behind it.

This is just one "trick" that allows me to out-range other players on the field- energy creep gives me that extra little bit of oomph."​

I've heard similar statements here in Denmark. Guns with a shorter barrel and heavy BBs gets a better output (higher joule and effect down range).
No I don't have any facts to back me up. That is why I've made this thread. To hear what others think and maybe someone has facts and wants to share.

About your little "trick" Scheck. Here in Denmark more and more fields are going to rate a gun by its joule output, with the BB weight you are going to use and the hop up set. This comes from the Danish MilSim rules: http://milsim.dk/rules/up/danish_milsim_rules_v3.1_english.pdf
 

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Discussion Starter · #3 ·
As I recall, you use an SVD? Aeg, hpa, co2 or ba? Don't know if that can have a factor in the equation? Might as well get everything out. :)

Sendt from the field with tapatalk
 

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Discussion Starter · #9 ·
I want to make something clear. I am against the usage of "energy creep". I do not like cheating and in some ways "energy creep" is cheating, or bending the rules to your advantage. I would like to see the rules change so it's not possible to use this trick.
When you do your chronos, it should be done with the desired hop up and BB weight and it should be the joules that decide your MED.

If the shooter is ignorant or just plain stupid, he will not act as his rifle is shooting 4J instead of 2J, he will shoot with the MED for 2J and maybe end up hurting someone. That could hurt the sport and create even more laws to forbid airsoft.

Then why did I want to know more about this "energy creep". Simple, you cant beat something you don't understand. Make it known to people that this is possible, then maybe someone with the capability to do something about it, steps in and change the rules before anything bad happens.

And also, I'm curious. Knowledge is great, even if its "bad" knowledge.
 
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