Mag refills
 

How many mag refills can a single 1000ml green gas/propane canister do until there is no gas left in the canister?

I've created a spreadsheet (attached below) to figure this out but i the main problem is that i don't know how much ml of gas does each bb used in my bb gun (KJW M92F)http://img154.imageshack.us/img154/2944/dry4vd.gif.

Any ideas?

Thxs

There is no straight answer to this question, ever. Why? Too many variables.

The gun, the weather, the ambiant temperature, the method used to put gas in, spillage, and so on.
When you live in a country that barely sees temperatures near or below zero centigrade, it's not obvious when we get far worse weather on a normal day.

The best answer remains a "best guess" for each particular gun.