FX Imapct Single Shot Tray/Adapter?

Hello i'm waking up this topic ! I'm desesperately looking for a Single Shot Tray/Adapter for FX Impact. I tried to contact Ernest but he didn't reply me ... :( If anyone know if someone are building it or something, please let me know ! I'm looking for something very easy ''drop & reload''. I draw a small design quickly. I can design it totaly 2D/3D at right scale if necessary but i don't have the resource for CNC it so .. If someone can do it. I'm open to idea to help & build for different calibers !

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Cool, i dont have access to .30cal where i live (Sweden) Because of heavy license restrictions and hard to get hold off in.. other ways.. anyway..
I can make a 7.62 holder as well but i'm guessing it should really be something like 7.64~.65mm.

Will take a look at it this weekend and see if i can knock one out in .22cal fairly easy. I realized i needed one when trying to load the JSB Monster .22s they were way to long for the magazine so i had to handload them one by one. And its annoying when trying to shot a group at 200-250m. (just for target practice).
 
A friend printed up David's design from Thingiverse for me. I had high hopes for it but was disappointed (and I don't like saying that when someone puts in the effort and offers for free). The problem is that the pellet holder is slanted downward so you have to hold the pellet it in place with your finger while trying to push it in the breach, which means reaching over the gun with the left hand to push forward the cocking lever. Very awkward. If it was angled up then there would be no problem. Perhaps I'm not seeing something here?