For 22 cal, N50 shooting, what is a good size for a tank to shoot tethered?
Size for tethered tank
- Thread starter SteveJewels
- Start date
I have used a 9L started with 190b and ended up with 180b so a smaller one would be better. I also have a 90 cu in bottle that I get 450 shots from
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What are 190b and 180b?
I just bought a rifle but have never shot it and have never seen any kind of airgun bench shooting, tethered or otherwise.
90 cubic inch scuba bottle?
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SCBA not SCUBA very big difference and no you cannot fill a SCUBA tank to 4500. Do not buy a buddies old scuba bottle or one from a garage sale. Not worth it.
SCBA stands for self-contained breathing apparatus and is typically used by firefighters or hazmat unit. SCUBA stands for self-contained underwater breathing apparatus and is very similar but it is used underwater.
Scba are made lite for firefighters to carry. SCUBA is made heavy so SCUBA divers can sink.
Allen
SCBA stands for self-contained breathing apparatus and is typically used by firefighters or hazmat unit. SCUBA stands for self-contained underwater breathing apparatus and is very similar but it is used underwater.
Scba are made lite for firefighters to carry. SCUBA is made heavy so SCUBA divers can sink.
Allen
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I got a used one from a friend from the fire department because they were getting all new stuff.. it's rated for 4500 and appears to be aluminum and fiber wrapped.. still have to get a full station for it and I don't know if I will ever tether it but it's not a lot of difference in price between the just fill station and the adjustable regulated value assembly.
so I think I will get the regulator one, if for nothing else I can set the regulator down for filling the 3500 psi guns.
I'm going to attach a picture, any idea how much it holds? similar in size to my nitrogen tank, I think 40 cubic inches..
do they have different sizes that the fire department uses??
I have a son in law that is captain of a big fire department and I'm thinking about asking him if they are getting rid of any.. wouldn't mind having a few bottles filled sitting handy..
1 so two major questions, should I get the regulated assembly or just a fill station.
2 how do I find out size it is and do they have different sizes for the fire department??
thank you
Mark
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It should be marked on the side. I think some say how many minutes of air though. Start with a fill station. The only time you need a regulator is when you are tethered.
Allen
Allen
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i usually use my 3L tank .. it fits easier on the bench, closer to the gun means easier to monitor its gauge, valve is right there, easier to plumb, etc .. easier being the key word, you could certainly plant a 9L on or under the bench and plumb it ... also important to note is you can tether directly off a tank filled to the guns fill pressure, or you can fill it to max and use an external reg, i have an altaros one thats pretty nifty ... more often than not though i use a tank to fill as usual till its down to below 3k then start tethering .. two tanks work out better obviously, the situation may stretch out over a few days or sessions so to speak ..
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I can't make sense out of the markings to even see it's date, I'll try to get pictures of the label.. only thing I understand is it says 4500 psi breathing air. if I measure it's dimensions could someone measure some of their bottles and then give me a rough estimate for it's size? hopefully I can get a picture of the label in the right spot so someone can recognize the numbers or size markings
mark
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This is a made in date, November 1996 look for the upsidedown triangle between 2 double digit numbers. Scba tanks are only "good" for 15 years. Scuba tanks go untill they wont pass inspection and testing.
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thank you for the explanation of the date code.. I was wondering, I posted a picture of my bottle above and it appears to be carbon fiber wrapped.. are they all the same size? or does the fire department have different sizes? if they are the same size.. mine is plainly rated for 4500 psi.. but how many cubic feet are they, or CC or CI? I'm just trying to get a idea of how they compare in size to the tanks like pyramid sells.
thank you
Mark
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Yours looks like a 30
min tank 44cu ft Firemen have 3 sizes
30 min 44 cu ft 4.5 lt
45 min 66 cu ft. 6.8 lt
60 min 88 cu ft 9 lt
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Mark, yes there are several sizes for the scba tanks. For me it is a little hard see size wise what your tank is without a reference or measurements.
It's funny dizzums uses a 3 liter tank, as I use a 9L and I put the tank on the bench.
On my range days I find that I tend to shut off the tank when the line is called to stop firing. Then a after the line is hot, I start firing again. Of course midway I find my shots falling until a dim light pops on in my head to open the bottle.
So I've decided to just leave the tank on and just carry another backup tank. I think a medium tank would be more than enough for 6 hours of shooting. My 9 liter did not even get below 4000 psi with a starting pressure of 4500psi. I only shot about 200 rounds. And my gun is thirsty.
Allen
Allen
It's funny dizzums uses a 3 liter tank, as I use a 9L and I put the tank on the bench.
On my range days I find that I tend to shut off the tank when the line is called to stop firing. Then a after the line is hot, I start firing again. Of course midway I find my shots falling until a dim light pops on in my head to open the bottle.
So I've decided to just leave the tank on and just carry another backup tank. I think a medium tank would be more than enough for 6 hours of shooting. My 9 liter did not even get below 4000 psi with a starting pressure of 4500psi. I only shot about 200 rounds. And my gun is thirsty.
Allen
Allen
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@Healthservices
Very helpful reply, that you Allen
Is it ok to have the tank on the bench? I think I saw something about the tank not being on the bench for N50.
@18.13
Your post was actually the exact information I needed. It just took me a couple of days to understand what it meant. LOL
Very helpful reply, that you Allen
Is it ok to have the tank on the bench? I think I saw something about the tank not being on the bench for N50.
@18.13
Your post was actually the exact information I needed. It just took me a couple of days to understand what it meant. LOL
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I'll get measurements on the tank. height and diameter.. I was thinking about going with a full station but I saw for just a little bit more I can get a well I guess it's a regulated fill station.. how do I know what the thread is on the original valve since to go with the fill station or regulate one I saw two different ones, one was in mm and the other one is saw thread..I can caliber the threads and id have both metric and SAE measurements but I only have a good thread pitch gauge for SAE..
Mark
Mark
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I had not seen the type tank you have before. After a little research it appears to be a hoop wrapped metal (aluminum although some steel were made). Not much information out there about it. Common wrap material included fiberglass and Kevlar.
Does your tank have any information stamped in to the metal around the top?
Pertinent information may be on the side (left side in your picture above).
As for thread sizes, those have been changed some through the years and would just be a guess. Your on the right track to measure them yourself.
Dave
Does your tank have any information stamped in to the metal around the top?
Pertinent information may be on the side (left side in your picture above).
As for thread sizes, those have been changed some through the years and would just be a guess. Your on the right track to measure them yourself.
Dave
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