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could someone please ggdt this for me.

Posted: Mon Oct 22, 2007 4:11 pm
by ALIHISGREAT
i'm building a 6mm sniper and i want to know some performance figuers so i can adapt my design to get the best performance.

a 1/2" qev, 80cm 6mm barrel, 20cm 15mm chamber, 1/4" blowgun pilot, pressure of 250psi, shooting a .43g airsoft bb (6mm).

opps forgot to add could you also put through the same setup but at 300psi.

thanks.

Posted: Mon Oct 22, 2007 5:18 pm
by psycix
why dont you do it yourself?
we arent slaves you know.....

Posted: Mon Oct 22, 2007 5:24 pm
by sandman
GGDT and vista dont mix well, they can work together but it takes some work

im assuming thats your operating system

Posted: Mon Oct 22, 2007 5:44 pm
by ALIHISGREAT
psycix wrote:why dont you do it yourself?
we arent slaves you know.....
:shock: thats news to me :lol: my dad wont let me download it because my mum has work on the computor and my sister accidentally gave the computor a virus a few months ago so my dad is reluctant to download anything that could screw the computor up again even though ggdt is perfectly safe.

Posted: Mon Oct 22, 2007 6:02 pm
by Fnord
He doesn't have to know ;)
You should get AV/AS software that isn't norton and a decent firewall like comodo or zonealarm.


The results are something you probably wouldn't want to shoot at your friends. 900 fps with 250psi and 950 with 300.

Posted: Mon Oct 22, 2007 6:12 pm
by ALIHISGREAT
_Fnord wrote:He doesn't have to know ;)
You should get AV/AS software that isn't norton and a decent firewall like comodo or zonealarm.


The results are something you probably wouldn't want to shoot at your friends. 900 fps with 250psi and 950 with 300.
:shock: :D :twisted: i will work out roughly how far it will shoot in the morning, imagine the power with an air rifle pellet :twisted: and could you please put the same setup through with a .20g bb at 250psi. thanks.

Posted: Mon Oct 22, 2007 6:24 pm
by Fnord
According to the EBC, it'll go about 300 ft when shooting level.

Posted: Mon Oct 22, 2007 6:38 pm
by ALIHISGREAT
_Fnord wrote:According to the EBC, it'll go about 300 ft when shooting level.
sounds about right, according to a tool i found it will shoot ~450ft before hitting the ground, i'm hoping to be able to shoot 300ft accuratly with a scope of course

Posted: Mon Oct 22, 2007 9:58 pm
by MrCrowley
Where did you get EBC figures for a QEV?
I've been looking all over for 3/4" GGDT figures for an American QEV.

Posted: Mon Oct 22, 2007 11:06 pm
by jackssmirkingrevenge
i'm hoping to be able to shoot 300ft accuratly with a scope of course
A bit unrealistic in my opinion - it's hard to hit a target at 300 feet with this setup firing 1 gram 0.22 pellets at 900 feet per second.

I think you should be thinking in terms of 12 ft/lb air rifle ranges, ie less than 150 feet. In order to reach 300 feet you'll be aiming several feet above your target with the trajectory of a howitzer, not to mention the effect of the wind on light projectiles at that distance.

Posted: Tue Oct 23, 2007 12:06 am
by ammosmoke
I dissagree, there are plenty of airsoft snipers that can do that just fine. I think he needs a hopup. How to do that within 6mm without purchasing a hopup barrel i'm not sure though.

EDIT: I also think that a 1/2" QEV is unnecessarily large. Thepopo did some testing with a 1/8" QEV, a 1 1/2" 3/4" nipple for an airchamber, a 509mm deepfire tightbore barrel, and a .25g ksc bb. It went through the top of a popcan and out the bottom at point blank. According to this test,

http://www.redwolfairsoft.com/redwolf/a ... ulletID=34

I think that he should be getting 650=fps... So yeah, you don't need that large of a QEV...

EDIT EDIT: Oh crud, it was a .25.... Darn, popo needs to try it with a .20...

Posted: Tue Oct 23, 2007 1:18 am
by Novacastrian
You would have to be firing on a windless day, but yeah it could be done with a lot of patience.

Edit- I don't think it could be done with airsoft bb's.

Posted: Tue Oct 23, 2007 1:56 am
by jackssmirkingrevenge
I dissagree, there are plenty of airsoft snipers that can do that just fine.
Have you ever tried shooting at a target beyond the length of your bedroom? What sort of an airsoft sniper can shoot a BB fast enough to reliably hit a 1 foot square target at 300 feet and still be safe to use in an airsoft game?

Posted: Tue Oct 23, 2007 2:01 am
by MrCrowley
jackssmirkingrevenge wrote:What sort of an airsoft sniper can shoot a BB fast enough to reliably hit a 1 foot square target at 300 feet and still be safe to use in an airsoft game?
A damn good one obviously :wink:

Posted: Tue Oct 23, 2007 2:03 am
by Novacastrian
The US marines should be scouting air-soft players hey? :lol: