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PostPosted: Sun Jul 28, 2019 7:35 am 
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Joined: Wed Oct 29, 2014 10:49 am
Posts: 258
Location: QC
Another airgun oddity joins the menagerie courtesy of a fellow forum member, it's complete apart from the front sight block that retains the barrel and the magazine tube:

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Stock:

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Action assembled:

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Action disassembled:

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Action front showing the spring loaded detent that stops the BBs rolling out of the barrel

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Action showing the sear engaged in the hammer groove:

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Muzzle showing the rifled 4.5mm barrel, presumably this was intended for lead BBs

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Rear sight:

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Magazine tube lock, it appears the tube needs to be removed for loading:

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Magazine follower:

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Safety in the stock:

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Here is a cutaway of an example found online that shows the inner workings:

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It's a conventional hammer valve however the trigger is a double action that cocks then releases the bolt.
There is no bolt that seals the action, it's just the next BB in line that more or less blocks the breech.
The hammer spring tension can be adjusted by rotating the rear cap on the action, there is one white and one red mark.
If I understood correctly, the white mark is for filling because otherwise the hammer would keep the valve open.

I'm working on a barrel clamp:

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Set screw keeping it in place, note the fill nipple to run it as a pneumatic:

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Hole to lock in the magazine tube:

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Need to remove a bit more material and add a front sight bead.

With 2000 psi of air it shoots steel BBs at a maximum of 860 fps, I have some tuning to do and will probably make a new stem.


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PostPosted: Sun Jul 28, 2019 8:07 am 
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Joined: Wed Jul 26, 2017 7:01 pm
Posts: 5124
Location: GTA, ON
PCP high power BB rifle?!

It's interesting!

And I concern about the accuracy of the 900fps BBs.... Protection glasses, helmet, and more personal protection equipment to shoot this indoor... [emoji38]b

Sent from my S8 via Tapatalk

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PostPosted: Sun Mar 28, 2021 6:16 pm 
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Joined: Mon Dec 19, 2016 12:39 pm
Posts: 3
A very interesting rifle!
Can you explain me how the magazine is sealed when firing? Or does pressure escape through the magazine with each shot?


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PostPosted: Sun Mar 28, 2021 9:43 pm 
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Joined: Sat Mar 16, 2013 5:15 am
Posts: 4137
Location: Edmonton
Interesting indeed. The only suggestion I can offer is to pursue the restro-modding with the original intent in mind: lead pellets. There aren't a lot of brands left on the market today (Gamo and who else?); Grab what you can and do some pre-testing.


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