SpudFiles

In this idea there are 3 chambers, the entire barrel moves, and there are 3 slots in the bolt. A spring will push the barrel back until it is exposed to the first chamber, a golfball will fall into the gap in the barrel. Once the air enters the barrel the GB will launch and the air SHOULD push the bolt back, the next GB falls in, the next chamber fires and so on. This may even work with PVC Shells. This would work very well with a really long barrel. This would be easy to make out of a golfball barrel.

that wiuld take a lot of work to get it right but is a great idea. Also accuracy might be a problem.

Yea thats a good ideia but i think there must be a simpler way. what that way is i have no idea

I'm also pretty sure there is an easier way, but this is what I came up with.

Just had an idea, make the gun a coaxial, instead of tees going to different chambers, have the chamber slpit into seperate sections, and have gaps in the barrel instead of the tees. This might save some space and would look cleaner.

The barrel would not move backwards, unless you are really ramming something down a barrel pnuemies have little recoil to power your mechanism. Secondly, even if you magicly got the golf balls to produce tremendous recoil while still being able to slide around, the recoil would not affect your 'floating' barrel, it would affect your chamber.

Did you read the part about the spring pushing it back?

won't the other golf balls sit on top of the one that you are trying to shoot. it will slow it down unless you pull the barrel back in place towards the front of the gun.

Its too complicated and you could easily jam the barrel. again accuracy would be nonexistant.