*NEW* My M-55 Mk. IV Metered Propane Cannon

[Tombstone]

Here is my latest and best big gun!! Meet the M-55 Mk. IV !
*BTW, the roadsign was straightened and re-attached to the post after that massive shot*... :p

SCH 40 PVC, Doubled on chamber and first half of barrel.
0.4:1 C:B Ratio, 4.1% Propane/Air ratio (metered).
Same ignition as my previous M-55's (BBQ Igniter with modded electrode).
New mod on my chamber fan module, added a threaded steel rod through, epoxy'ed and bolted tight, to have a solid grip on the fan module to unscrew/screw for maintenance of chamber.
Chamber : 4in.X 20in.
Barrel : 1.5 X 50in.
Sound : Badass.
Recoil : Solid.
Reliability : One click, one bang...
Grinning like a mofo everytime i fire it : PRICELESS!!!
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[Anatine Duo]

that's pretty awesome

I like when plumbing doesn't look exactly like plumbing

[Tombstone]

Hehe, thx !! Me too man, i like to make my guns, solid, badass and lookin' good, although, it still aint perfect finish-wise, cause i've had to improve on my original design, and had to repaint a few parts and retape the whole thing, but i think i'm becomming a decent "Cannonsmith", lol!...