Random for drop from 290 to 230

[Nick G]

No it’s not I did check and is that actually possible with the teeth on it?

It can happen 

 

[ak2m4]

@metaljoelmole229 thanks man, much appreciated ?

So is this the order of events then, just for clarity as it often gets a little confusing to some (well me especially lol) :
 

• From stock changed to 13:1, 22TPA, ZCI Rotary and MR 60 - FPS dropped to 260 (Can you confirm what BB weight and the FPS before you changed the parts?)
  
• Refitted stock inner barrel, hop chamber and hop rubber - FPS now 230
  

The nozzle is the kit is 21.4mm btw..

Seems you're going backwards ?  Whenever I hit "weird" issues like this I prefer to take everything back to stock, including the old trigger system, gears etc.  Once back to stock, chrono and then introduce each new part one by one.  I know it's a ballache of highest order.

One thing that can introduce weird FPS loss, worth checking.  Sometimes an inner barrel can move forward slightly inside the hop chamber if the retaining clip isn't attached properly, thus resulting in 100fps or so loss.  

 

[metaljoelmole229]

@metaljoelmole229 thanks man, much appreciated ?

So is this the order of events then, just for clarity as it often gets a little confusing to some (well me especially lol) :
 

• From stock changed to 13:1, 22TPA, ZCI Rotary and MR 60 - FPS dropped to 260 (Can you confirm what BB weight and the FPS before you changed the parts?)
  
• Refitted stock inner barrel, hop chamber and hop rubber - FPS now 230
  

The nozzle is the kit is 21.4mm btw..

Seems you're going backwards ?  Whenever I hit "weird" issues like this I prefer to take everything back to stock, including the old trigger system, gears etc.  Once back to stock, chrono and then introduce each new part one by one.  I know it's a ballache of highest order.

One thing that can introduce weird FPS loss, worth checking.  Sometimes an inner barrel can move forward slightly inside the hop chamber if the retaining clip isn't attached properly, thus resulting in 100fps or so loss.  

On first bullet point yes but stuck with og hop and fps was constantly at 230

and swap back to stock barrel bucking and swap og hop with zci and nozzle to a zci one and fps now at 230 but ever random shot like 1 in 10 jumps to 270 and I am using .25.  Sorry for the wait for response personally issues sorry.

Guy found fix.

give up hpa it and pretend I didn’t wanna have a aeg.

jokes aside I was thing of hpaing it in the near future but gonna use this in a cyma.

 

[metaljoelmole229]

found a fix i think i left precooking on as i replaced it with a m100 spring and 1.2 joules