Well I had already ordered most of my parts so I guess I get to work through the challenge.

Okay so I have been reading more on the Forum and have come up with this thanks to wyz2285 for his tutorial for a .50cal semi-auto http://www.spudfiles.com/how-to-database/topic24574.html . This time I actually used pneumatic system symbols. Oh and the magazine will be from the bottom not the top. A...

Is that what what wyz2285 did here http://www.spudfiles.com/how-to-databas ... 24574.html? It look a little different mainly the air is coming from the side hold not through the bolt.

It looks like I will have to make it pretty large to fit my ammunition.

@jrrdw The animation jack posted?

@jack The blow forward in the video double feeds at the end that worries me and the ammunition I am going to be using is CO2 cartridges cut off and weighted with lead either 1-1/2" or 2" long. And I had no idea what kind of Anything to use, this is all new to me and the idea for the drawing popped i...

Not offhand, if you start explaining it I might have an idea but off the top of my head not a clue. And thanks for the welcome.

So this is my first Semi-Auto Pneumatic rifle, I have made Single Shot cannons in the past but I wanted to really reach out with this one. I had a idea for a system but I can't figure out how to do this mechanically without two triggers the first to load the ammo by air pushing a piston into the amm...

Is there a chance you can re-upload the video?