Is it rusty/nasty inside? What does it shoot over the chrono?
The internals of the marker are clean, I cleaned and lubed them myself. I don't have a chronograph at my house, so I couldn't tell you but the velocity screw was not very far down when I fired it today. I bought some 12 Grams, today to actually gas and fire the marker, and the results were not pretty, I got about five shots off before the thing refused to fire or cock again, and it seemed like there was still a bit of CO2 in the cartridge when I unscrewed it from the bucket changer that came with my marker. It was cold outside but not five shots from a 12 Gram cold, I suspect I have a leaky o-ring somewhere in the marker. I submerged it in water gassed up and cocked but did not fire it and bubbles were coming from the back/bottom of the bucket changer (the open part where they butt end, not the end that gets punctured, of the cartridge is). So my next question is, is there supposed to be a o-ring near where the cartridge gets punctured? Like is the neck of the cartridge supposed to be sitting in an o-ring?
I'm guessing my problem here is a combination of the spring, and the leak I believe I have. The marker was caked in old paint from the 90's when I bought it and the spring had been left uncocked. It sat in a humid and damp area for a good few years and then a cold and dry area up until I bought it. The marker had been left uncocked when purchased and all the o-rings are stock o-rings. The spring, feels overly stiff and is bent pretty good.
I was looking at purchasing this O-ring kit (yeah I know it isn't for my marker but it looks like it should contain o-rings that will fit any o-rings that need to be replaced in my marker).
And this Spring Kit(Not sure if this will work, does anyone know if BT4/98C springs will work with a Stingray?