The BB to Gas ratio can vary wildly depending on a number of factors, temperature, weather, type of gas used etc.
If that is a picture of your actual pistol then anything other than 134a will shorten its life considerably.

134a?

can you tell im new to this!

There are different types of gas, 134a, Green, Red, Propane being the most common.

Pistols with a plastic/abs top slide should really only run on 134a (retailer recommended due to warranty) but will work fine on green but may reduce life. Red or propane will kill it!

Guns with a metal top slide will run on green, red and propane without any issues but remember to also use lubricant as not all gases contain this as standard.

Using 134a gas with a pistol with a metal top slide MAY work but it will probably have problems cycling and you won't get the best out of you gun especially during cold weather.

The cold affects most gases so keep mags somewhere warm to get a decent FPS. Hot weather will also affect your gases and may increase FPS to over site allowed levels.

This help?

sory to change the subgete the subegect a bit cut what tipe of gass is zero one pro gas? www.zerooneairsoft.com/product_info.php?...amp;products_id=2383
o and a bit of a stupid quseten is thar a mackimum amubt of time you can cepe gas sortd?

Not sure mate as I don't use it but at a guess I'd say green?

Used that Gas once before, it's apparently green gas. I didn't like it personally. Didn't seem to give much power for green.