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Paintball to .22 pellet conversion.
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Billbobnz View Drop Down
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Joined: 14 Jun 2020
Location: Ashburton
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Posts: 918 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Billbobnz Quote  Post ReplyReply Direct Link To This Post Posted: 24 Sep 2022 at 3:50pm
Love this little project J-S. Got me thinking about turning a paintball gun I have into a air shot gun, I collected a few 20 gauge empty shot shell the other day and wondering if I can do a small load in them and see how it goes. If I get started on it I'll let you guys know how it goes
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EllaRose View Drop Down
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Posts: 2 		Post Options Post Options   Thanks (0) Thanks(0)   Quote EllaRose Quote  Post ReplyReply Direct Link To This Post Posted: 07 Mar 2025 at 3:09am
Originally posted by J-S J-S wrote:

Update.. nothing on this one..
BUT, i did get a couple more cheap paintball guns of Trademe to hatch some more evil plans. Both are electric triggers which a very light compared to the current mechanical.

Current project has a long bolt insert which acts as a transfer port of around 70mm. Is this wasted space for gas expansion, or does it aid in power?

The next project may be a pistol version; if I make the barrel transfer port directly over the valve (like a crosman 2250), should this provide better use of the gas?
(Im a springer fan at heart so this gas stuff is a bit less known).

Below is a quick preview idea of project number 2:


Cool projects! A smaller transfer port can make gas use more efficient, but some space helps with pressure. Placing the barrel port directly over the valve should improve power. Excited to see what you build next!
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Mintie View Drop Down
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Posts: 76 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Mintie Quote  Post ReplyReply Direct Link To This Post Posted: 17 Mar 2025 at 10:42am
Looking forward to hearing more updates on the tuning Jono!

I still think it should have been a .25 cal to fully make use of the c02 powerplant
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J-S View Drop Down
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Posts: 497 		Post Options Post Options   Thanks (0) Thanks(0)   Quote J-S Quote  Post ReplyReply Direct Link To This Post Posted: 17 Mar 2025 at 10:59am
Originally posted by Mintie Mintie wrote:

Looking forward to hearing more updates on the tuning Jono!

I still think it should have been a .25 cal to fully make use of the c02 powerplant


Haha yes this is still in pieces in need of a little valve work to stop the blowback - a groove and a couple of orings should work but just havent had the time!
J S Airguns
Air Arms TX200('s)
Theoben Sirocco
HW77
FWB 300s
Webley Patriot
One or two others...

Current projects:
Too many..
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