Hi,
I recently purchased a S410 .177 classic 2005 build. Testing with a chrono theI found that the power steadily
increased over 110 consecutive shots. The face of the firing/exhaust valve showed definite signs of "extrusion".
I ordered a replacement but was concderned what power might be developed and that it might need to be reduced.
The anti tamper adjustment is on the right hand side. The current parts drawing shows it to be M3 allen head. It isn't.
The visible screw is T10 Torx pin head anti tamper. Beneath this is a M1.5 Allen head screw.
I hope that this might help others.
Chris bailey
