Direct to gun full time connection?

It is called shooting tethered, and i do it too being a bench shooter, so using my fill kit i am connected strait to my 9 L / 300 BAR carbon fiber tank ( most important the rifle being one that can handle 300 BAR )

I really can not be bothered keeping track of pressure, seeing as i shoot 1200 or so shots in a outing with no problems.
So hook up and let the fun start.

For being mobile you could of course use a smaller bottle, say 3 liters. 9 liters is enough for many 1000 shots in the .177 caliber i an tied to, larger calibers of course using more air for their more power.

I think this is not uncommon for paintball players either, perhaps them using lower pressures and so would need a inline regulator between a 300 BAR tank and a 200 BAR or less paintball marker.
 
if you are shooting say .30 caliber, i think even just tethered to a 3 L 300 BAR CF bottle, to deplete that bottle in one outing, you will have to carry so much lead, that you do NOT want to fall into a river or lake, CUZ you will be going strait to the bottom with all that lead in the pockets.

You dont need a inline regulator if your rifle are a lower pressure, but then you can of course not fill your big botle to a higher pressure CUZ the rifle will not take that.
I have a few times shot my old 200 BAR FX r ifle on my 300 BAR bottle, but not before i have shot its pressure down to 200 or lower using some of my 300 BAR rifles.
In general as i just shoot with a pressure of 100 BAR on the rifles regulator, well i shoot my big bottle down to 160-170 BAR or so before i fill it back up to 300 on my own Compressor.

Fair warning the carbon fiber bottles, many dive shops will NOT fill those if they have a little of the clear coat chipped, so you should probably not go full Rambo mode with a bottle like that on the belt / back.
And you do need a proper big boy compressor to fill the big bottles, at least from a fairly low pressure, my 4 cylinder compressor handle a 9 or 12 L bottle just fine, but one of the cheap 1 cylinder compressors will take a long long time and need many brakes meanwhile. but you can use those to top yup a big bottle if you only shot it down 50 - 100 BAR i think,,,,,, still slower than my 4 CYL compressor of course.
 
The smoke diver bottle setup it do sort of have a blast shield on the harness, not that it is meant for that as far as i know.
When i taken the smoke diver course and subsequent refresher courses as you must do as a Danish merchant marine sailor, it have always been steel tanks.

Work up a nice sweat, just crawling around with one of those, even more so carrying a 90 kilo dummy out of a fire situation.
and not forgetting putting overtightened rooms out, that are so hot you need to cool down the walls before you can dare to open the door and put out the actual fire.
 
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Yeah kinda sucks everything is going great then poi starts moving. It isn't realized until you made a couple adjustments to the gun that the bottle pressure dropped. Having the gun tethered makes it one less thing to worry about.

I use these to regulate pressure to the guns. Note with these two no more than 300 bar fill at the supply bottle.

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I use these on the bench with my ELR impact. I have the reg pressure on the gun at 170 bar so 200-205 is what I have the bottle reg at.

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Allen