Carbon Fiber Tank and Regulator question...

I want a CF bottle to refill my lil Harpoon 50 cal cartridges. My question is more with regulators...

What I want is to fill my ~.5 liter (future CF bottle) up to its max of 4,500 psi and then be able to transfer ALL of that pressure into cartridges. The problem is, all regulators I'm seeing list a max output of only 3000 psi.
Are there any reasonably priced regulators that can output the full pressure in the bottle?
TIA
 
Thank you, I see your point. We're gonna need a bigger bottle. :)
So all I need is an unregulated valve, right?
Like this?

Thx for the advice.
In theory yes. However if you do use a regulator then all the cartridges will be at the same pressure and you will have more consistent velocity. Otherwise, regardless of tank size, each consecutive cartridge will have lower pressure.
 
Hi,

It appears that best way to fill these cartridges is directly from your compressor......

JackHughs
Yeah that math caught up with me after your last post.
Isn't 4,500 psi a fairly routine gun spec? Why does anybody buy a 4,500 psi tank
since it becomes a 'depreciating' tool starting at first use?

I would ask if there are higher than 4,500 psi rated tanks out there but I'm already invested in a new QX CS3 compressor that maxes out right about there too.

It looks like I'll be investing in more cartridges instead of a bottle. For now, I just keep reading.