AA S200 .22 air problem

[Gerard c.]

Good afternoon to everyone,
I hope you are all ok? NOW I have an airarms s200 .22 Its the one with the one piece stock I put it over the chrony this morning and found a reading of 443.4 fps, I was only able to try one shot as the neighbours came into there Garden so thought best to stop
when I filled it a few days ago there is a chance it did not fill properly seem to be a lot off hissing of air, I filled the reservoir again this morning seemed alot better filling so will try again this evening over Chrony, If it is still low anyone enlighten me where problem might lie and is it fixable without having to send away as some of the parcels I am getting here are badly knocked about and obviously dont want the rifle damaged on its journey. Thanks in advance.

[MrGreengrass]

What was the reading on the bottle gauge..??
Could it have been overfilled..??.#r not filled fully..??

[daystateman]

Sounds like you may have a leak from the cylinder somewhere if it isnt holding air.
Unscrew the cylinder off of the gun, fill it up fully and slowly.
Apply some soapy water to the valve filter and around the base of the valve where it meets the cylinder. if theres bubbles appearing theres your leak. if not apply soapy water to the knock off valve at the other end of the cylinder.
Also check that the two o rings on the filling valve on the cylinder do not have chunks taken off of them, this will cause leaking when filling and you will feel and hear this leakage more if you are using a dive cylinder.

[Gerard c.]

Thankyou for your speedy replies, I have in the mean time cleaned valve then went through fill procedure up to 190 bar on dive cylinder was able to chrono again reading was 10.54ft.lb does that seem about right for this rifle for despatching Bunnies?

[MrGreengrass]

Yes, the power will rise and fall over the shot range.
Do a 40 shot chrono test on it then you will know exactly
what the gun can do.
My guess is 10 shots in and it will be 11+ with 35 good
shots left before it starts to drop.
Mine is .177 and regged so i get more shots but still fill to 190bar..
Had the std .22 before.

[rapidresponse1]

it will dispatch bunnys bud

[Gerard c.]

Thankyou both for you replies are thes rifle,s easy enought o strip down and thoroughly clean and service?

[Gerard c.]

Will try a chrono test tonight when neighbours safely tucked up indoors

[MrGreengrass]

Thankyou both for you replies are thes rifle,s easy enought o strip down and thoroughly clean and service?

This i dont know as i have never had to strip one down.
Mine was bought with the Lane reg and Gauge/Quickfill already fitted and set up.
I have read the cylinder ends can be very tight and a tool is availiable to aid removal.