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PostPosted: Wed May 12, 2010 4:19 am 

Joined: Sat Jul 14, 2007 11:45 am
Posts: 2099
Location: Southern Ontario
Voltar1 wrote:
Let me see if I understand this....
You have AirArms airrifle(s) plural and you have a fill gauge that agree on a pressure 'number' and now you are filling a new HW100 that you have zero experience with and so are questioning all the prior colaborating information?
Does that make any sense to you?
You have three pieces of pressure instrumentation that agree and one that does not. Would it not be reasonable at this point to trust the three in agreement?
Yes, absolutely....and I already said that :P
Pumpmaster wrote:
Since the gauges on all my Air Arms rifles have pretty accurately matched what the gauge on my scba tank and hand pump have said, I guess the gauge on my HW is the one that's most likely off :x

I did some testing last night, and discovered something about the gauge on the HW. The needle seems to move quite consistently until it hits about 170 Bar. At that point it seems to "stick". Once the gauge on the scba tank sat at 200 Bar, I let everything sit to ensure the gauge on the rifle wasn't going to move any more. I then very slowly opened the valve on the scba tank and kept an eye on the gauge on the rifle. To my surprise, the needle quickly jumped, and showed a full fill when the reading on the scba gauge still only read 210 Bar. :?
I ran a bunch of pellets through the chrony and got 30 full power shots before the rifle showed 120 Bar, which is exactly what I was hoping for to shoot 1/2 of a HFT match :D
Needless to say, I'm quite relieved and a very happy camper. Unlike a few people on this forum, 3000psi of air makes me a bit nervous :lol:
Thanks for the input guys.

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