S200 low power

[Greyghost]

Hi all, I chronographed my S200 today and it’s down on power, just under 6 ft.lb, that the average from 190psi down. Any idea what it could be? Thanks in advance

[TenMetrePeter]

Missing or broken breech seal (see if it blows off a rizzla paper)
Dirty or oily striker hammer or housing
Broken hammer spring
Dirty worn or damaged firing valve but apparently less likely in these guns.

OR - its a target version
Was it ever 11 ftlb?

[Greyghost]

Thanks for the advice Peter, I’ll try what I can, then a trip to the gun shop I guess, like you say It could be a target version?

[TenMetrePeter]

you could ask Air Arms using the serial number. Target versions start off with a muzzle piece with dovetail rail and usually a gauge in the cylinder end, but that is not definitive.