GTA
PCP - HPA - C02 Gate => QB-7X Gate -W/Co2 & HPA => : July 31, 2007, 09:48:59 AM
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This is actually my first air rifle and being an engineer I decided to fully customise it, rehoned the breech and barrel crown. Removed the breech tube design and replaced with a 1/16" stainless stub. Removed cheap chinese finish on the stock, stained it with Walnut and then polished with Acrylic Sation Varnish. Also tuned the valve. Now shooting at average 11.2 foot/lbs in .177".
This is a lovely rifle and just needs a bit of TLC, it is now shooting about 1/2" groups at 70 yards using RWS R10's. Not bad for £70.
Chris
The suppressor is actually an empty 88gram C02 canister with a 1/4" hole drilled in the end.
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Welcome to the forum, new here myself.
When you say "Also tuned the valve", what did you do and how did you do it?
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I tapered the brass stem, removed 50% of the steel pins body, not touching anything closer than an 1/8" of the pin.
I also removed a lot of material from the washer allowing less restriction when being activated. I removed the synthetic wadding too.
Chris
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..for those mods, that's a a good return and I'd proably stop there..esp. as you seem to be in a 12 foot pound limted area. Only suggestion might be if yu start having point of impact changes...that muzzle attachement is proably pretty heavy, and that barrel band might shift a bit from the weight and vibration...might not...but if you do have problems, might consider a ligher weight muzzle attachement.
These things have the widest variation in stock wood!...yours turned out quite well. Always seems to be at least one spot that they had to fill with some synthetic stuff...usually long cracks, but in yours it seems they had a "bullseye".
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Welcome to GTA Christopher and that is one sharp QB there ,nice stock and mod's. Were all alittle Airgun crazy here so feel free to jump into the addictive maddness hehe and if you hunt some, throw up some pic's or a story in our Hunting Gate. Ed
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In regard to the barrel band I forgot to mention that it is blued steel and the suppressor was very heavy so I turned off a large amount of material from it. It is now only a 1/16" wall thickness.
The stock has turned out wondefully, i am really happy with it.
Regarding the hunting section, currently only a few wood pigeons for a pie.
If anyone has any ideas for a magazine system that would be brilliant, or anyone has any desings for a decent bipod
Cheers
Chris
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Here (http://thread-view.asp?tid=4000&mid=27500#M27500) is a link to the thread I started about the magazines for the QB. The email addy for Max is in my next reply in the thread .... for some reason the addy didnt paste to the original post so I had to put it in another post.
John