Best combination for accuracy and range?

T4RGET wrote: »

Tobias Juicy Grasshopper wrote: »

Longer barrel does not = more accurate in airsoft. In fact it is the opposite to an extent. It is all about the air ratio, amount in the barrel in comparison to the amount in the cylinder. So as said above, go for a 363mm. Then a bucking of your choice, Guarder clears are fairly decent, better if you shave off the nub.

well up to about 450 or so it's going to make a huge difference as it stabilzes the BB before it leaves the barrel. but even longer I've never herd anything of it not doing any good.

Not a huge difference no but, BB's bounce down the barrel, the further it goes the larger the increments are of it hitting a side of the barrel, thus making it less accurate, to an extenet.

THE MINDER wrote: »

As a matter of fact when 'BACKSPIN' is imparted to the bb by the rubber bucking it causes the bb to run along the topside of the barrel;)

No, it hits to top of the barrel causing it to bounce to the bottom and so on and so forth.
When an item hits something else it bounces back (If there is nothing to absorb the impact). A hard bb or a metal barrel won't absorb the impact.

Here is a picture (Had it saved but cannot find the study done) saying how a bb bounces down the barrel

And here is a picture showing that with a longer barrel (If used with an incorrect air volume especially) the increments between each bounce increases.


I remember seeing a video too a while back, there were tests carried out with a clear barrel and a high speed camera.

THE MINDER wrote: »

Google who?-300ft on 1 joule?-that would be something! As a matter of interest who did the other 'study'(Illustrations) you refer to? And at what fps/bb weight -I'm only wondering because at no point in the illustrations is the bb trajectory straight(even on exiting the barrell)

It is just making it easier to see that a spherical item going down a barrel will bounce. It obviously isn't that dramatic, it's just for illustration.
The first one was just to show how a ball bearing travels down a barrel.
While the other was showing how it bounces (And how the increments increase).


And search "LRB airsoft barrel"

And I was wrong, you can supposedly get 300ft with a gun shooting 350fps/.2g
However there are some hop-up units you can make that give the 300ft with a fairly straight trajectory.
E.G. the R-hop or the G-hop. In the summer, I'll be making a G-hop or two and might have a go with an R-hop in another gun (Maybe my sniper rifle)

Here is a G-hop - around 280ft shots on .79 of a joule (Makes the hassle of an LRB pointless and this is more accurate)


Or you can a buy ready-made R-hops online, they won't be as good as the G-hops you can make (My opinion).
https://sites.google.com/site/hsarmory/


Or for G36's (Won't work for any of my other guns for some reason) you can simply shave off the nub on conventional rubbers. and it'll add a little more range due to more uniform spread, flat hops are best though.

I am amazed at how un-informed we are in comparison to our American counter-parts. I wish we had easier access to compressed air up here, then I'd make a 50rps Polarstar engine powered BB gun which can be bumped to 500 fps when playing in England.


The only problem with all of this is that the shots will land like a butterfly, you most definitely won't feel them.



To OP, I would recommend Ultimate barrels but I wouldn't Guarder

THE MINDER wrote: »

Heads up on your research-I dont know why the link is in chinese as HS ARMOURY is as you say US based. Even hunter seeker will agree that all his R hops and the like are still in test phase and need to be matched properly to each AEG(He would also agree with the 450mm barrell idea) -I'm a'm aware of all that stuff-(like you refered to shaving the nub of a guarder(EITHER WHICH WAY YOU WILL NEED A fLATTER NUB CUSHION)-not sure hunter seeker would'nt recommend a different bucking for that process!)No intention to disagree with your opinions but for the original OP question there is no point in going there:) Let me know how you get on with your R Hops BTW.

I never said a 450mm barrel was a bad thing, I said a very long barrel is a bad thing however IMO you don't need near 450mm to 'stabilize' a bb.

Also for the shaving part, I mean to file or shave off the little bump on the bucking, not the nub, my bad.

And when I said ill informed it wasn't pointed to yourself, I just meant in general.

THE MINDER wrote: »

Yes all very innovative indeed:)

I'd try it but
a) I have a crappy dremmel
b) I am crap at using dremmels anyway :pac:

hehe.

Mr X15 wrote: »

Seen this a while ago on another thread or forum maybe cant remember, but was thinking of doing something similar but instead of fitting a piece of rubber was thinking of filling the barrel with some aluminium rod or something(close as possibly to internal Diameter of barrel) and then filling the extended hop up cut out with silica gel or something like so I end up with a perfectly formed and fitted hop up bucking

Don't be afraid to try it, see how it turns out.

Mr X15 wrote: »

Seen this a while ago on another thread or forum maybe cant remember, but was thinking of doing something similar but instead of fitting a piece of rubber was thinking of filling the barrel with some aluminium rod or something(close as possibly to internal Diameter of barrel) and then filling the extended hop up cut out with silica gel or something like so I end up with a perfectly formed and fitted hop up bucking

Someone already tried something similar. All credit goes to SOCOM, I believe that's his name here on boards. If I'm wrong, sorry.