@shailu, on the surface, that might seem to be a good thing. Say we can compress to twice current fill pressure, so airguns are made to fill to 500 bar versus 250 bar. You would "think" that would give twice the number of shots, right? Unfortunately, basic physics doesn't support that principle.
When looking at high pressure gas (air), there is such a factor as "Z", or the compressibility factor. Normally, this is approximately "1", so that pV=(Z)nRT is true without a correction factor, up to about 250 bar (or so), and "Z" is approximately "1" for normal temperatures.
When pressures are lower, the molecules are free to move. However, when compressing air past a certain point to very high pressures, the air molecules are colliding more often. This allows repulsive forces between molecules to have a noticeable effect, making the molar volume of the real gas (V) greater than the molar volume of the corresponding ideal gas (V), which causes "Z" to exceed "1".
So doubling the pressure in your air tube or bottle does not result in a doubling of useable air volume... (even if you had a compressor that could fill to greater than 300 bar). You guys with Crickets ever fill to 300 bar, then after only a minimum number of shots you're down to 250 bar? Now you know why...
FYI going back to the OP's topic, hydrogen (quantum gasses hydrogen, helium and neon) is one of the gasses that doesn't react the same as air, so this description doesn't apply directly, so going to 10,000psi for that specific application makes more sense...
