Matthias, glad that you got the leak slowed down enough to take your friend shooting. Let us know what you find when you get it "totally" fixed.
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It’s the regulator shaft so keeps it all in line there’s a small o ring inside there could have moved.Yupp, tried adjusting the reg. Both ways. Nope.
Tried to wiggle the pin, even found an adjustable wrench in my field kit to try to turn it slightly. Nope. It changes the amount of hissing air escaping, but no stopping....
Scanned all webpages, Youtube, parts diagrams, but nope — no-one explains what that pin does....
I've got all night at my cow range, so, if you've got more suggestions — I appreciate them!
Matthias