Board Thread:Off Topic/@comment-26397825-20160103032023/@comment-25396609-20160105021559

No matter how good a shot you are you're going to miss eventually, and more time between reloads is never a bad thing.

Oxygen is not typically used as a propellant, i don't know the science behind it though, think it's because of how flamable it is, pressurized oxygen can easily explode. CO2 is typically used because it's less reactive and more easily compressed.