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No it just breaths through the thread
Thanks for the diagram. I have one more question. Is there a breathing hole in the regulator like the one in Huma?

Can someone explain me how the regulator is vented to the atmosphere? I know it is vented through threads but I cannot imagine what is the air path. Can someone create a diagram?
Same as Lelya and Veles pistol I believe
Are there any reg testers for Leshiy on the market?
250mm barrel.
Short barrel? If so, then I think you will be able to achieve about 275 m/s using 350 mm barrel.
Keyser, what is Vmax you achieve in .25 with a short barrel at 110 bars and fully compressed HST?
I don’t know. It’s not that I couldn’t check, it is just when a gun shoots as well as this one does (760 FPS) I don’t continually mess with it. It will go faster; the HST has several more clicks out before hitting max. My best guess is it will hit 780-790
.22 250mm barrel regulator setup 110bar 18gr jsb max speed is 800- 803 fps.
Please tell me how it is with regulator venting – I asked about that one post above.
Keyser, what is Vmax you achieve in .25 with short barrel at 110 bars and fully compressed HST?

I guessed right the regulator was adjusted to 130 bar. Now it is adjusted 110 bar. next weekend I tested what are the speeds.
Do you mean that the spring washers chamber is vented to the atmosphere? I cannot imagine that. I know there are regs which vent through threads but they have an oring on the head not below all threads. Could you post a picture on how it works in Leshiy?
Keyser, as of the speed it’s weird that you had to do any adjustments to reach 750ish FPS in .25. Ed had that speed in almost every video about Leshiy he made.
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Wingman, Any thoughts as to How many shots one could expect from a stock gun set for 800 fps with JSB 18s?