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 Post subject: Re: QB78 more fps
PostPosted: Thu Oct 25, 2018 7:32 pm 
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Joined: Mon Jan 20, 2014 10:32 pm
Posts: 758
Location: Burlington ON
Thanks, good link - I hadn't found that one.
I don't have charging equipment so no HPA and started another thread about CO2 options, ideally I would prefer to use the 88g cylinders but it doesn't look like a simple adapter for that is available.


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 Post subject: Re: QB78 more fps
PostPosted: Sat Oct 27, 2018 10:03 pm 
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Joined: Sat Nov 05, 2016 10:52 am
Posts: 2924
Location: Caronport, Saskatchewan
You can easily convert the Qb78 to bulk fill with that end cap plug from Canada shooting supply, or you can modify your end cap plug yourself and keep the ability to use co2 cartridge by drilling a hole part way through on the front end of the plug where the cap threads into it (take out the screw and drill and tap 1/8npt, then take a smaller drill bit and drill on an angle from the other side so you miss the piercing needle, drilling into the big hole. Then screw in a one way foster nipple, first drilling out the end cap big enough so the foster threads can slide through. After sliding the threads through the cap, putting some loctite or wraps of Teflon tape on the threads and threading it in, you've now got a multi purpose tube. You can stick co2 cartridge in or you can fill with a big co2 tank for a pile of consistent shots. Or you can hook a remote paintball line and carry a tank on your belt and shoot 100's of shots.
I probably don't make sense, so I'll look for someone else's better explanation to link. I've done this and it works, that's about all I can say in my defense, lol!

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 Post subject: Re: QB78 more fps
PostPosted: Sat Oct 27, 2018 10:09 pm 
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Joined: Sat Nov 05, 2016 10:52 am
Posts: 2924
Location: Caronport, Saskatchewan
There's a nice pic diagram of what I was trying to say here on this page
https://www.gatewaytoairguns.org/GTA/in ... msg1172406

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 Post subject: Re: QB78 more fps
PostPosted: Sat Oct 27, 2018 10:10 pm 
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Joined: Sat Nov 05, 2016 10:52 am
Posts: 2924
Location: Caronport, Saskatchewan
HereImage

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