wtf??!!
I just visited some air gun dealers site and i learned that they sell air rifles that can go up to 3000psi!
I am making an air rifle that i was gonna pump with a air compressor up to 300psi. :(
I thaught that 300psi was much!!
Wtf??
I mean 300psi is enough to go trough 18mm plywood. Whats 3000psi gonna do??!! Go through a wall?!!
Wtf? :(
But is there a way for me to pump to a higher psi??
And a other thing. My air tank was this ABS pipe and i was wondering if you could get ABS pipe out of iron. Can you??
PS: I still havent learned how much fps a 300psi is.
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Rather an old thread, but when you get sick of shooting batteries out of PVC, you can go buy a "pellet gun" that will shoot through as many sheets of plywood as you care to stack.
quackenbush
Shinsun
quackenbush
Shinsun
Aug 25, 2007. 9:13 PMacer73
says:
I don't know how strong ABS is but PVC has a breaking point of 200psi. If the tank explodes you will be filled with plastic shrapnel and some hearing damage. Get some wide thick steel pipe and cap both ends. Much stronger but there is a chance of killing you if it explodes which isn't likely as long as its not filled that great of a pressure. 300psi isn't much, Daisy pellet riffles go to around 600 and I have a spring loaded one that has 1000.
Mar 11, 2008. 5:36 AMTETRANITRATE#2
says:
not all pvc has a breaking point of 200 psi. i use a barrel for my hybrid that is sch160(600 psi) but that is for water. that same pvc with compressed air will break at around 300-400 psi. also your spring loaded gun does not go to any psi because it uses a spring not a tank to compress a piston forcing the pellet out.
Aug 27, 2007. 7:24 AMEnzo55 (author)
says:
Yeah but your air rifle shoots bb bullets. Not quite the same. I´m shooting AA Batteries and marbles at 300psi. Compare a little bb to a marble. But tell me does your spring loaded rifle shoot through 18mm plywood?
Aug 28, 2007. 9:34 AMEnzo55 (author)
says:
" A pellet wont go through plywood" I think thath says it all. And i shoot marbles to by the way, m&m´s and popcorn beans in a homemade shell.
Aug 27, 2007. 7:01 PMacer73
says:
No my PELLET rifle shoots pellets which are much more powerful, I have not tried to shoot through plywood, I can tell you that It can go through a pidgin though. I would Not shoot AA batterys they are heavy and it they hit someone they will end up with a very bad bruise at the very least and a broken rib. You can not compare a Pellet to a battery but im sorry to say that a pellet wont go through plywood; a AA battery wouldn't go through it ether, it would only break it in a few places.
Our Webley xocet air rifle can get a rabbit at 40 yds. in fact lets say 20+ rabbits, I have also hit a pheasant at 60 yards but it only slightly injured it. now there is no way you can get the same performance with a bigger projectile, a .303 is big enough size for deer, so it'd be better to get an old air gun and rig up the barrel.
Aug 30, 2007. 4:27 PMacer73
says:
why would you hunt a rabbit with a air rifle esspecially a pheasant. An AA battery would be like a large bullet, you just need a large barrel and tank to have it fly fast enough to take out a dear.
Aug 29, 2007. 11:54 AMEasy Button
says:
Well, actually i'm 13 so you should learn how to spell.
Aug 29, 2007. 5:31 PMEasy Button
says:
Wow,that comment is so screwed up i can't even read it.
Aug 29, 2007. 3:03 PMMetal4God
says:
you said you were 11 and then 12 an now 13 wow 2 years has gone by QUICK
Aug 29, 2007. 5:30 PMEasy Button
says:
Ya i feel like changing it i'm 11 actually. And Gotja is really getting on my mind.
Aug 30, 2007. 6:24 AMgotja
says:
so ur 11 then 12 and 13 2years in 2 days wow also get over it not every1s gonna listen to you not every1 wants to be grameracaly correct i personaly dont care unless its skool...
What is wrong with using a TSR (runs in background) spell checker ? :-)
Oops, sorry, old term....means Terminate & Stay Resident (something that runs in background).
Jan 17, 2008. 6:23 AMgotja
says:
3000 fps is insane thats about 3 times faster than sound... (speed of sound 1100 fps) but i think he ment like it was a precharged pnumatic gun (pvp i think) so it would be a multishot. you would charge 3000psi with a scuba tank
I'd be inclined to assume that the 3000 is a typo. Why not email them and check?
they dont rate air guns in psi. they usaully do it in fps. so it might be 3000 fps but that is still extremely high. 3000 fps would go threw your body and then some.
Jan 17, 2008. 6:21 AMgotja
says:
3000 fps is insane thats about 3 times faster than sound... (speed of sound 1100 fps) but i think he ment like it was a precharged pnumatic gun (pvp i think) so it would be a multisho. you would charge 3000psi with a scuba tank
. 3000 does sound rather high, but that is usually only the small volume contained in the internal storage tank, not the barrel pressure. (I'm talking about the manual air pump type. See http://www.airgundepot.com/397.html ) Not enough volume to maintain that pressure as the breech, chamber, and barrel are pressurized. The barrel pressure is not that high. I can't find anything that says what the pressure actually is in the barrel/storage chamber. :(
. If using CO2/N2/etc with a large volume available, I'd guess that 3000 is about an order of magnitude off. That sounds like barrel splittin' time. ;)
. If using CO2/N2/etc with a large volume available, I'd guess that 3000 is about an order of magnitude off. That sounds like barrel splittin' time. ;)
. Plus, in a Benjamin-type gun, the bolt acts as an orifice that will limit flow into the barrel.
Aug 29, 2007. 3:04 PMMetal4God
says:
i think 3000 can kill someone (to heck with paintball and co2 airsoft im going to Airguns)
Aug 27, 2007. 10:15 AMtrebuchet03
says:
3,000 psi is no game.... Even 100psi can cause quite a bit of damage (energy stored depends on the volume of compressed gas).
It seems rather likely that it's 3,000 psi for a very short burst - wheras a typical home made cannon will use a full dump. So you could end up expending the same amount of energy.
Scuba tanks are charged up to 3,000 - 4500+ psi. Using multi stage compressors ;)
My air tank was this ABS pipe and i was wondering if you could get ABS pipe out of iron.
Nope, you can't get ABS pipe out of iron... Unless you happened to have an ABS pipe stored inside an iron pipe - then you could pull ABS out of iron in an even more literal sense :p
It seems rather likely that it's 3,000 psi for a very short burst - wheras a typical home made cannon will use a full dump. So you could end up expending the same amount of energy.
Scuba tanks are charged up to 3,000 - 4500+ psi. Using multi stage compressors ;)
My air tank was this ABS pipe and i was wondering if you could get ABS pipe out of iron.
Nope, you can't get ABS pipe out of iron... Unless you happened to have an ABS pipe stored inside an iron pipe - then you could pull ABS out of iron in an even more literal sense :p
300p.s.i. is around 24Bar, (rough estimate) my brothers spud-gun made out of 22mm. copper pipe @ .8metres (est.) reduced to 15mm. charged @ 200p.s.i. and a PVC "rocket" on the end can go about the length of a football pitch.
Common sense, I have not had the grand opportunity to own, or even use a gas air rifle, but from what I have read about them (a lot) the higher range guns are able to shoot around 200+ pellets before another recharge -and that's without a drop in performance (pressure). The Logun Gladi8or can shoot 500 rounds in one charge, (and that's one nice gun). I believe your contraption only fires one round at high pressure, whereas the commercial products fire 500 rounds at a 10 times the pressure, and also they only have a projectile of .22" / .177".
Aug 25, 2007. 7:29 PMEnzo55 (author)
says:
and a nother thing.. Is it possible to get some blowback on home air guns. Then i mean increase blowback?
Aug 26, 2007. 12:23 AMacer73
says:
if you mean a kick, then no a 300psi gun will not give off enough force to push back to be noticeable.
It's not "a other thing" or even "a nother thing." The word is "another"
. Why start a new thread for this? Move it to your other thread on psi/fps and I'll answer (not that I have much to tell ya).
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