New BB type ???
 

One of my favorite retailer when I was playing paintball (who are also selling full-metal gun that can be modified to fire BB) has released a new "aerodynamic"
BB....

http://www.rap4.com/paintball/news/i...from=&ucat=12&

What did you think about this ? Remember, they can be only used in Rap4 guns and these guns have no hop-up system.

Hmmm, cute... 8)

Interesting....but those would cost more than BBs....

It wouldn't fit in out guns anyway, spare bolt action ones.

What is wrong with hop up?

Pretty cool, the shells are disposable, not a bad idea for realism.

.19g... hum mabie in my UHC sprigner...

It may just be the one innovation paintball has over standard airsoft right now, ejectable shells.

dude, these rap4 are actually airsoft, they are making them now because they see the market is there for them.

They look cool, but the fins might cause a problem if the BB is jostled around during flight and strikes bare skin. Ow.

they copied the early design of asahi with their M40A1.

http://www.airsoftplayers.com/m40a1/m40a11.asp

I wonder if they make anything heavier in that format, like maybe .36g or .43g....and if so, I wonder how far they'd extend the range and increase the accuracy of a sniper rifle...say, like a VSR-10 or M24.

Airsoft is so cool that they have to steal ideas.

shell ejecting airsoft guns have been around sense like 1977. MGC had a M16 VN that was shell ejecting.

Lame, IMO. Range wouldn't be anywhere close to that of a hop-up equipped gun.

Given the shape of the projectile, those fins probably cause more drag than any increase in performance. Those types of fins (like on mortars) are used to keep the shell from yawing, so it doesn't wobble in flight, and lands on the detonator -- and does so by inducing drag on the tail section.

Without hopup, the range of those will just be shit. They may be accurate, but that doesnt matter if your max range is 30 yards.

I wonder what sound those fins make when they fly by some1's ear.

I just have one observation... Regular football... vortex football... hmmm... The problem is imparting spin on the BB, if it has the same style grooves as a nerf vortex football than the only problem becomes how much power can you give it. Then again the amount of power to make one of these fly in a straight line probably far outweighs the benifits in accuracy gained by the fins. I would love to see some hardcore data comparing the regular style bb and these new accuracy ones.

i wouldnt want to get hit by a tumbling one the fins could hurt... especially those blade ones that load into the shell

Maybe they could work in a springer sniper rifle?

Ya but a football shape projectile has less wind resistance than a round shape.

I wonder if it would work better with a spin on it like a bullet or football. I wont hold my breath but it is an interesting idea.

Tanio-Koba Hop Twist Barrel for Marui VSR-10
http://www.wgcshop.com/WGC_Shop/imag...t_htbvsr10.jpg
http://www.wgcshop.com/pcart/shopper...rate%20Barrels

Well, if that rifling actually works properly on a plastic BB, the accuracy will improve (assuming your rifling twist is appropriate for BB weight & velocity) -- it's been done with pellet guns, they usually have rifled barrels. Some of them can shoot both pellets and BBs (the copper veriety). While less accurate than pellets, the BBs do gain accuracy compared to normal. (and on a sidenote, don't try that with a rifle you like -- BBs have a copper jacket, much harder than a lead pellet; it causes serious wear to the rifling and accuracy will go to hell in no time.)

As for the shape of the projectile, yes the football shape is more aerodynamic, but the tail induces more drag, so you don't gain anything.

Either way, hopup still gives you more range -- and that's probably what most people are after (specially snipers).

I don't know....I've never seen someone launcher a basketball ball as fare as an football one...

I'm sure the idea is good...but I wonder if it will be really working... I hope they (Rap4) will supply us with plenty of data and statistics when these fins wil come out (nex september, I think...)

As far as I understand, those barrels DO NOT impart spin on the bb. The purpose of the grooves is to allow air to travel in them, past the bb, creating a cushion of air around the bb. The bb then rides this cushion of air, perfectly in the middle of the barrel, never touching the the actual barrel. I believe it was Illusion that said this. So that barrel is not for what you think it does.

Meh, in that case it's pretty unimpressive.

And regular barrels (especially tightbores) already do this, by way of Bernoulli's principal (specifically the Venturi Effect). Simply put, if everything is working properly, your BB should never be touching the inner barrel on its journey towards the muzzle. Hrm, actually it's doing the opposite, since the Venturi effect creates a relative low pressure system around the BB (the air has to speed up to get around the constriction; think airplane wing)

i gotta say the fins would only stop the bbs from spinning which would give more predictable shots but i think range would be sacraficed b/c of the drag, not to mention the mess some AEGs would make with all those shells ejecting

as for rifling a bb gun, it would be great but the bb would have to have enough energy to be able to loose some to the friction in the barrel, and i dont think a couple of joules is enough

Drake, I think that for steel barrels copper degrades accuracy less over time, because lead fouling builds up quicker. Aiui copper is no-where near hard enough to ever damage the bore.

Ghost Snake, that picture is pretty much just what rifling looks like, except you can't really tell the distance between lands because it gets blurry at the muzzle.

I think they'd fly OK, but it looks like the made the fins slightly narrower than the bore, probably to feed better. Problems could arise with the fins being slightly off-balance at launch, maybe degrading accuracy.

those shells r just creating more waste for the environment
why would we want to pay more to destroy the environment?

Because we can....muh ah hah hah hah hah....

Because we're not all hippies. Ruining the environment is a small price to pay for realism in airsoft.

Lol, yea, because our public school brainwashing indoctrination is wearing off. Plus they don't actually hurt anything. They help with soil aeration, provide homes for slugs and insects, and all sorts of good stuff.

yes with those little white plastic things popping out the side, airsoft some how got a lot more realistic
i would like to see an AEG made so when it fires it sounds just like the real thing
that would be real

Read a little bit more before posting on something you don't really know lol
Theses shells are biodegradable.... but if you don't care too much for the environnement, there are copper version of those (unfortunatly, they only works with the .43 paintball version of the rap4 gun).