berettasv10

Don't know how many extra charges you will get, but its not worth changing a 232 bar tank to a 300 bar tank as not all places will charge to 300 bars due to the extra wear on the compressors, also most compressors / air banks have their blow off valves set to 232 bars. Around here a lot of air gunners use 12 ltr tanks at 232 bar with some using 207 bar tanks and others may use 7 ltr tanks which cost around £3-00 to have filled.