one day
about 900 shots
alot
12g,
It seems that they are just steel.
44 grams of CO2 (1 mol CO2 from 1 mol C if enough oxygen, air, is available)
Molecular weight of CO2 is about 44g (12g Carbon + 32g Oxygen *2 atoms Oxygen). So that means if you are presented with 44g CO2, that means there's 12g Carbon.
Roughly 600
the 12g cartridges are usually about 99c each but you could probably find them for more or less. Each powerlett is 12 grams of C02 and holds 80 PSI. Each shot diminishes the C02 by a fraction. You should get around 60 shots at least per Cylinder.
It varies by make, model and air temperature, but you can expect to get at least 50 shots, possibly more.
It all depends on the model but you will most likely get 50 plus shots.
Depending on the setting of the gun close to 200 shots. I have a 9 oz co2 tank and it usually goes for about 150 to 175.