AA Volume

[badgeroy]

Has anybody any idea of the volume of the AA 4** Carbine and Classic cylinders. Thanks in advance.

[Rich]

180 and 200 cc respectively

Rich

[theboymike]

I seem to remember the effective volume of the carbine cylinder worked out to be about 155cc taking into account the bits housed inside..

[Rich]

When I created the number-of-fills spreadsheet I asked all the manufacturers to let me know the free air volumes of their current rifles to build into the software.

Air Arms stated 180, 200 and 220 respectively for the carbine, classic, and FAC versions of the 4** series. I haven't measured them as I suppose it's fair to assume the manufacturer knows best.

[theboymike]

I've just measured a spare carbine cylinder I have kicking around - measurements were as follows:

Internal diameter: 27.6mm
Overall length: 300.0mm

Using these figures I get an internal volume of 176893.7mm^3, or 176.9cc.

Remember this isn't taking into account the volume of the end caps or valve housing which are situated inside.

I can't be bothered to work it out with these included as I'm off up the club to get a bit of shooting in before the light goes

[Rich]

Can't fault the arithmetic. AA must be better at making rifles than doing sums.

Rich