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Rear loading combustion (German production xD)

Posted: Sat Jun 14, 2008 8:29 am
by freder
Hey,

this is an old combustion I startet to make a couple of months ago.
Forgott a handle for the ignitor :lol: - but I gave it a paintjob.

My rear loading mechanism:
I don´t push the ammo down the barrel because I can easily pull out
the "stock" and push the ammo in from the back side.

I cut the potatoes by pressing them threw the pipe in the stock.

Some other specs:

C:B: ~2:1
Chamber: 25 cm long.
Barrel: 60 cm long.
Ignistion: somthing like a BBQ-lighter
Other: Fan + switch in front grip

If you have any questions just ask :wink:

Posted: Sat Jun 14, 2008 9:05 am
by bigbob12345
I like it
I think it deserves a propane meter though.

Posted: Sat Jun 14, 2008 9:26 am
by frankrede
Its lacking H&K's aesthetics, but the ingenuity is there, nice job man

Posted: Sat Jun 14, 2008 11:06 am
by starman
I like the concept a lot actually. Looks like you lost a little patience with the tape jobs at the end. I'm with BB, A syringed type metered propane fuel system would be nifty with this.

Be sure you lock that breech plug down well. I could see that thing bloodying your nose (or worse) after a shoulder shot if not.

Posted: Sat Jun 14, 2008 11:34 am
by freder
Well I´m not in to the propane stuff but maybe I´ll try once :D

@ starman:

Actually you shoulder fire it by using the breech plug as a stock.
So you just have to push your shoulder hard on the plug, hold on tight to
the front grip and jam the chamber between your arm and body because
this gun has a bad ass recoil :twisted:

Posted: Sat Jun 14, 2008 12:48 pm
by STHORNE
Very nice work. But yeah....a propane meter would do it some justice.

Posted: Sun Jun 15, 2008 5:34 am
by freder
haha... actually that isn´t mold. Those are holes I drilled in.
I first thought I could drill in one big hole for the lighted gas but noticed
if I had done that it would have been hard to push the potatoes in ( or somthin else). So I drilled in a few small ones.

Posted: Sun Jun 15, 2008 6:41 am
by freder
Here´s a small sketch of how it works ( not shown: fan, cap, ignition)