Can you reuse a CO2 container once it is unscrewed from a paintball gun but still has CO2 in it?

Answer 1

Yes, you can keep a tank on for a significant amount of time without losing any air assuming you have no leaks. You can tell if you have a leak if you hear a hissing sound from your gun or see frost or a liquid from any place where air goes.

Answer 2

Absolutely! You can reuse Co2 if it is full, empty, or half full. Though make sure you change your O-Ring (The small plastic ring on the top of the tank nozzle). If you do not, you will either A. not be able to put the take on, or B. Get the tank stuck on the gun.

Answer 3

No, keeping it in the gun means it stores pressure outside. After a while it will loose pressure from any minute leaks you have, and you will not be able to fix or clean you gun as well as not being able to fill your tank.

Answer 4

Yes. You will loose 5-10 shots every time you take it out, but any tank with a valve can be unscrewed and stored for later. 12 gram cartridges cannot.