Thanks YHR, I figure that the Tiger was one of the hardest hitting tanks the Germans had in the war, so I wanted MY Tiger to hit hard as well.

I just removed the barrel from an old Daisy BB gun I had that did not work, so now I have my barrel and a couple of springs to use in my mechanism. I ordered a Spektrum DX6 radio, the Sabertooth 2x10 and an ANT 150 last night, so when that arrives, I'll put the gun on hold until I get the hull operational. After that, I'll finish the gun.

I plan on using either 12 or 16 gram CO2 cartridges, and some Clippard valves to operate the cannon, just like the the warship guys do. The tricky part will be getting the feed system and elevation system to fit in the confines of the turret. I might have it figured out already, but I'll need to fabricate some parts to see if my ideas are sound.