The most powerful air pistol would be a Air Force Talon-p 25 Caliber. This is a PCP class air pistol. The air tank uses 3000 PSI to fire the pistol.
lightning is more powerful than air
Lightning is a natural phenomenon that carries a powerful electrical charge, while air is a mixture of gases that make up our atmosphere. In terms of power, lightning is more powerful than air due to its ability to carry high voltage electricity and cause significant damage during a strike.
Not designed for this type of modificaiton.
Do not expect any air pistol to come near advertised speeds. Evanix, FX air guns and others make super powered pcp airguns that can reach into the 600-700 fps area, where as other spring pistols like the browning 800 mag and Diana p5 and lp8 can get around 500 fps.
Search the web for air gun repair or air gun tuning. There are several shops that tune or modify air guns.
around 500fps sometimes more
lightning
No it is not possible
It will shoot pellets or bb's. They normally use an air cartridge.
No it's not necessary, but any good instructor will tell you two hands make you more steady than one. A good pistol stance is to hold the pistol in one hand and place your other hand underneath your pistol hand to help steady it while shooting
Realistically, you don't even attempt to.