Right .
My Regulated S410 has a recomended fill pressure of 210 . This means when i fill it , the guage on the bottle is my guide and i stop at 210 , simple .
You will always go from your bottle`s guage , as gun gueages are a bit vuage to say the least , but ok for an indication of where you are .
A regulated gun will only show an amount that its set to , IE , mine is ALWAYS 110 , this flickers very slightly when i pull the trigger but settles back at 110 .
This may help -
http://www.youtube.com/watch?v=xcFQBIUQiGI
http://www.airguns.net/general_regulators.php
Th