Shot my Uragan2 .30 a week ago, filled a few times at the range and shot it without a problem. Packed it up and brought back home and the pressure gauge was at zero, gun leaked out all its air, refilled up to 200 bar and it’s held air since. Weird
ive had fill valves that didnt seat properly before ..what staves that off is if you can drip alittle silicone oil down into the fill port next time you fill, itl lube it all up good ..
New to all this but I know some guns like to have a set amount pressure in them. Without their minimum pressure the seals won't set in and they will leak. Seems all guns have a minimum pressure they like to be at. It could be just that you went below the minimum after shooting.