Beeman R9 main spring dimensions

[HWNut]

Hey there,

does anyone know the exact dimensions (mainly length) of the stock main spring of the Beeman R9 air rifle and what power output it has in .177 caliber? Are the main spring dimensions for the R9 and HW97 the same?


Thanks.

[JimL911]

I measured stock 95 and 77 springs and they are the same. 11.5" 34 coils .126 wire .803 outside diameter .562 inside diameter. SS lists 12-15 fpe.

[HWNut]

Thank you very much Jim!