Just got back from the Airsoft extreme and did chrono testing with 0.20g, 0.25g, and 0.30g bb's and here are the results.
0.20g bb's = 407 - 412 FPS
0.25g bb's = 374 - 379 FPS
0.30g bb's = 344 - 353 FPS
The numbers seem pretty awesome to me and actually did better than I hoped on the 0.30g bb's. So I'm very happy. I'm just hoping that the spring settles down to 400 FPS on the 0.20g bb's so I can meet the max requirement for the field
I will look into this R-Hop mod you speak off. I read on it briefly but didn't understand how it puts a back spin on the bb's since it looks flush with barrel, please enlighten me how it is better than tacketts hop up tune, if not I'll leave it alone.
p.s. I also shot a video of install but want to edit it before I post it.
In case you are wondering the internal set up here it is:
G&G stock CM16 stock gears,
Shimmed w/Systema Shims,
G&G stock CM16 Gearbox,
G&G stock CM16 tappett plate,
G&G stock CM16 9.5 inch stock inner barrel,
Stock Hop Up (Tackett Fine Hop Up Tuned,
SHS white bucking,
SHS delayer clip,
SHS Trigger Contact,
Guarder SP130 spring (m120?),
SHS Full Cylinder (Type 0) "Grooved",
Prometheus Metal ball bearing ported Piston head,
SHS Metal rack Nylon Piston (AOE corrected w/70d sorbo),
SHS double o-ring cylinder head,
SHS O-ring nozzle,
SHS ball bearing spring guide,
dremel polished interior gearbox,
stock 8mm cm16 bushings,
SHS ultra torque motor,
turnigy nano tech 25c-50c lipo,
16 awg wiring,
What do you guys think?