DIY-RVA?
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Topic: DIY-RVA? (Read 2261 times))
ray1377
Just one more airgun. What can it hurt? :)
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Posts: 1078
Master of the 1000 inch shot.
Real Name: Ray
DIY-RVA?
«
on:
January 03, 2024, 08:46:31 PM »
Mr. Bob
If this is in the wrong gate I do apologize. I just know you have done a great deal of work with co2 guns and thought you might have the best input. If I build my own RVA for a 2240 stubby I'm working on, I understand you trim the factory spring to get a higher shot count while using less co2 per shot. I was curious if I build my RVA that is a bit longer than the norm, can I leave the factory hammer spring its original length as long as my adjustment screw is not touching or adding any extra pressure to the spring? I want to have some adjustment but didn't want to shorten the factory spring in case I need to swap some parts around and go a different route. Sorry about the picture, its not anywhere near scale, just something I threw together quickly.
Thanks
Ray
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Union Co, MS
All that is needed for evil to triumph is for good men to do nothing.
A government big enough to give you everything you want, is strong enough to take everything you have.
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rsterne
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Bob and Lloyd
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Real Name: Bob
Re: DIY-RVA?
«
Reply #1 on:
January 05, 2024, 12:53:29 AM »
Yep, that should work.... You would be even better off if you make an SSG, using the factory spring.... This stops the spring before the hammer contacts the valve stem, allowing the hammer to free-flight to open the valve.... It can be adjusted to reduce the power, and gets rid of hammer bounce, which conserves CO2....
https://www.gatewaytoairguns.org/GTA/index.php?topic=102095.0
In particular, check out Reply # 722 of Page 37.... over 600 FPE on a single CO2 cartridge (with a 24" barrel).... Here is a comparison between a simple RVA and the original version of the SSG....
There are many variations on the SSG, you can find a summary of (most of) them in Reply #355 on Page 18....
Here is my original work on CO2 efficiency....
https://www.gatewaytoairguns.org/GTA/index.php?topic=27198
.
and here is a challenge I issued to get the most efficiency out of a stock 7.5" barrel on a 2240....
https://www.gatewaytoairguns.org/GTA/index.php?topic=103343
.
I hope you can glean something from these threads....
Bob
«
Last Edit: January 05, 2024, 01:13:09 AM by rsterne
»
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ray1377
Just one more airgun. What can it hurt? :)
Expert
Posts: 1078
Master of the 1000 inch shot.
Real Name: Ray
Re: DIY-RVA?
«
Reply #2 on:
January 05, 2024, 09:48:14 PM »
Thank you Mr. Bob
That was just what I was needing for my build.
Thx
Ray
Logged
Union Co, MS
All that is needed for evil to triumph is for good men to do nothing.
A government big enough to give you everything you want, is strong enough to take everything you have.
They that give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.
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GTA
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All Springer/NP/PCP Air Gun Discussion General
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DIY-RVA?