I really don't see anything fundamentally wrong with the a typical advanced spud gun. The efficiency is a fair bit below a modern rifle but what do you expect from something that costs 1% of a decent rifle? The thought that you could engineer up a spud gun to match a real rifle is OK but ultimately...

Anyway, what I think would be innovative is instead of just another muzzle loading combustion with an "exotic fuel" how about we find a way to create a repeating combustion launcher. I mean it's been done before http://www.spudfiles.com/forums/gatling-1-t20903.html http://www.youtube.com/watch?feat...

What do you mean by ideal? If by an "ideal combustion cannon" you mean a perfect one....Well, let me give you the short answer.... There isn't one. I like the idea of a gasoline combustion cannon. But I don't see how that would really be anything radically innovative....And it seems to me that you w...

I decided to make the design. I am currently making the chamber out of pvc, i have layered 3" copper pipe to 3" pvc to 3" expanded pvc and fittings to 4" pvc. I plan on making the piston out of a 2.5" pvc cap. The chamber is going to be relativly small, being about 6 or 7 inches long with a 1 1/4 g...

Why even have the wood pistol grip behind the blowgun? To me, it looks like it would get in the way...Anyway, overall nice build. And like jack said, GET DAMAGE PICS/VIDEOS!!!!!

I like how everyone doesn't seem to have a problem with it except you....... I also object, that golf ball should have punched through the plywood like it wasn't even there. It was because of the barrel size, he wasn't utilizing the full power because the barrel was too short. Look above my post :D

DYI wrote:Your launcher is mediocre

I like how everyone doesn't seem to have a problem with it except you.......

Although I will say, that yes it's mediocre. But it is this guy's first effort. You do have a lot of valid points but maybe tone it down a little lol.....

What about this?

http://www.spudfiles.com/forums/gatling-1-t20903.html

or this?

http://www.spudfiles.com/forums/tbma-23 ... 23605.html

@ijahman Could you go a little more in depth in your reloading system for the gas? I looked up on how "venturi nozzles" work and I understand how they work, but from my understanding you're using a regulator to regulate the mapp gas and the venturi nozzle to decrease the pressure but increase the fl...

To be honest, I didn't really read the entire first post. I saw the thread was in the pneumatic cannon discussion and not the BB/Pellet gun discussion. And I kind of just posted what I thought would help but apparently not. Will read next time lol

mattyzip77 wrote:Does this guy even have a clue?^^^^^^^^ I dont think so!! :spam2: :spam2:

Don't have to be a douche about it. I thought he was talking about a spud gun not a pellet gun.....

You should check this site out if you're looking for rifled barrels:

http://www.spudtech.com/store/index.php ... led+barrel

warhead052 wrote:Yep, plus it will make it able to control rate of fire on semi (Stupid maybe, but useful. Allows time for the barrel to cool if you are firing rapidly).

Sounds good I'll see if I can get some animation up soon.

Yes, that is exactly what I was talking about. The recoil wouldn't be a hard thing to deal with, simple as adding a all thread bolt, and a nut-fender washer-nut combo to hold the spring in place, and twist it to adjust tension. That way its easier to adjust for recoil, and you could possibly use hy...

Take a look through the show case and discussion, JSR has a combustion cartridge with shell ejection that may interest you. Doesn't use a gas ram, but it uses the force of the recoil to push the cartridge back and eject the casing. Interesting....Maybe if I could figure out a way to "measure" recoi...