Brocock/BRK New to me Brocock Bantam Sniper HR has a slow leak, HELP PLEASE

Yes I tried that too with Windex and also Dawn dish soap and water. Guys I am just going to just put it aside for a while and save band with. If I get it figured out I will come back and let you guys how I got her fixed. I still love the gun and will use her as is.Thank you guys all for your suggestions but no sense to continue beating a dead horse. I will probably just tearing the whole thing down and replacing all the seals.
 
Thank you for your suggestion but I have had both gauges out and replaced both dowty washers. Also replaced it on the new valve. I have fixed leaks in quite a few airguns over the years but this one has me stumped. I also tried sticking the end of the barrel into a bucket of water but no bubbles. I really want to thank eveyone for their suggestions. I may have to send the rifle to AOA. I do admit I have way more experience with co2 and springers than PCPs.
What about bottle did you check the condition of oring inside of bottle
 
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Hey guys I think I got it figured out! Today I tryed using Windex again but this time I did it with about 50 bar in it and it was bubbling like crazy around the regualtor adjustment screw. I didn't see it when testing at higher pressures. I'm thinking when the pressure is up it really slows the leak because of the pressure on the o-rings is pushing harder and not letting it leak as fast. Does that make sense? I think the o-rings are in the rebuild kit I ordered from the UK. fingers crossed.
 
Hey guys I think I got it figured out! Today I tryed using Windex again but this time I did it with about 50 bar in it and it was bubbling like crazy around the regualtor adjustment screw. I didn't see it when testing at higher pressures. I'm thinking when the pressure is up it really slows the leak because of the pressure on the o-rings is pushing harder and not letting it leak as fast. Does that make sense? I think the o-rings are in the rebuild kit I ordered from the UK. fingers crossed.
I wonder if someone tried reducing reg pressure without degassing system?
 
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Well guys I only did the 2 small o-rings on the pressure adjusting screw and that did the trick. I got up today and check and the guage hasn't moved so I am calling it good. I learn alot by this adventure and want to thank everyone for their help. Bill
You also taught a bunch, I learned what to lookout for and where to look for leaks from your post and the responses you received.