Originally Posted by paraordnance
well, acording to my calculations 20 oz CO2 paintball cylinder is about 1/10 of 5 lb tank so thats where my worries comes from. Will it fully carbonate and dispense 1 corny keg of freshly made homebrew?
There are 16 oz in 1 pound.
5 lbs X 16 oz = 80 oz.
80 oz / 20 oz = 4 (number of fills)
which equals 1 lb 4 oz per fill.
Now to your question. If you do not have any leaks and do not waste the co² in your process, you should be able to fully carb and dispense ± 2 kegs on a 20 oz'er.
EDIT: (for an after thought) Are you filling your paintball tank by weight? If not, there is your issue. You MUST fill by weight or your risk is high.