Can anyone tell me how long a CO2 cylinder will hold pressure after being put in a gun?

I just bought my first CO2 rifle (new Crosman 1077), and want to keep it "ready to go" for keeping pests out of my Wife's flower beds.

Will it hold it's charge for a few days or a few weeks?

Thanks! Virgil B.

Last edited by vbshootinrange; 08/15/21.