Relatively new to carbons - is a Beeman 400 (or any other 400 series arrow) equivalent in spine or deflection to a Carbonwood 4000.  I have the Carbonwoods shooting well out of a couple of bows but apparently they have stopped producing them.

ttt

carbonwood thread  

Here is some info that might help from an old thread!

Tech Specs
   Weight      9.9 gr / in.
   Spine      .350"
   O.D.      .307"
   I.D.      .244"
   Length      31"
      
                     
Pro Series 4000 Carbonwood - Shafts      #C4000CW      MSRP $84.99      info    
Pro Series 4000 Carbonwood - Vanes      #C4000CWA      MSRP $94.99      info    
Pro Series 4000 Carbonwood - Feathers      #C4000CWB      MSRP $99.99      info    

And this is off their old websight sight.  It looks like they spine out at .350...hope this helps some more...

The CX 250 should be very close. It is 11g per inch and a .373 spine. The heavier shaft should make up for the difference in spine.

thanks, bigjim

Any .340 spine carbon would be close choice also,like a Beman MFX 340.They are around 10.4 GPI and the Classic is around 11.2 GPI.I have a couple of bows that I still shoot Carbonwood 4000 out of,and they fly just great out of it.Since they don't make them anymore I went with a 340 spine carbon.

thanks all - very helpful.