Video of Evolution of Akins 3 crank fire prototypes I machined, plus live range fire

[Bill Akins]

It's been a while since I last posted about my crank fire creations, so here's an update on my latest 3rd prototype that is convertible between being water cooled or air cooled in under a minute and showing it firing at the range. I used to use Webshots to upload my photos and videos to. But when they closed down, all the pictures and videos I had linked to there in my online posts, disappeared. I still have my pics and videos on my computer and saved to disks, but they disappeared in all my online posts since they were all linked to Webshots. Now I use Photobucket as well as YouTube.

Here's a video I just finished creating showing the evolution of my crank fire dress up kit prototypes versions 1 through 3. The first one is air cooled only. The second one is (truly) water cooled only. But my third prototype is convertible in under a minute to be either air cooled or (truly) water cooled (no fake water jackets here). I learned a lot making the first two, and my 3rd prototype incorporates new design changes that I learned from making the earlier ones. In my video you will see my latest 3rd prototype firing at the range using the new GSG 110 rd drum mag and it's really spitting out the rounds. Hope you enjoy it. Bill
https://www.youtube.com/watch?v=xSJi6rvNwIs&feature=youtu.be


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[Thermactor]

Hi Bill,
Watching the video, what kind of ammunition did you use with the 110-rd GSG magazine? The failures to fire made me wonder.

 

[Bill Akins]

Hi Thermactor. I was using the Remington 550 "Bonus pack" 36 grain, plated hollow point, velocity 1280 fps at muzzle, 1010 fps at 100 yds. Could be with all the firing I've done out of that gun, that my return spring on my bolt may be getting a little weak and not giving enough force each time forwardly to the bolt to adequately strip a cartridge off the feed lips every time. Only happened three times out of 110 rds though, but I'd like it to not happen at all. I have a new spring still in the package, might install that before the next range outing to see if that improves things.

 

[hso]

That's great! Any video of their firing?

 

[Bill Akins]

hso, did you watch the video? That video link I just posted has a segment of the 3rd prototype firing both a 110 rd GSG drum mag and a 25 rd mag.

 

[hso]

Sorry, had to attend to something else after 6 and a half minutes into it so I didn't make it to the last minute and a half of the video.