B&A Rifle Final Plans

[Acdcmonkey1991]

This is the FINAL design for the cannon/rifle I'm building this weekend. Instead of the old design, the chamber is now 3 in. X 12 in. At 150 PSI the GGDT says I can get 106 foot pounds and 550 fps with a 50 gram projectile. The valve is a modified sprinkler with a 1/4 in. ball valve actuator. The barrel is 30 in. long and is shc. 40 3/4 in. PVC. It is now also a muzzle loader due to its raw power.

[PVC Arsenal 17]

There will be some dead space in that design. How bout you bridge the upper and lower parts of the stock and plug the rest.

[spudthug]

that dead space wont matter because the valve is at the barrel...if the valve was at the chamber isnt that dead space??? (i know i am probly wrong but thats always what i thought) yell at me if u want but thats what i thought...maybe (most likely) im wrong...correct me

[Acdcmonkey1991]

I'm probably going to cut a custom piece of wood to put in between the sock and then glue it in between.

[Hotwired]

No, you're right.

Dead space is empty space that has to be pressurised by the released gas before it reaches the projectile.

There shouldn't be a problem with having the stock pressurised.

[skinner]

Flow restriction might be a factor, it would be more economical to take the shortest route, such as from the chamber, 2 x 90° elbows, then to the valve, and attach a stock on the back, like so........



or similar.

good luck.
skinner

[PVC Arsenal 17]

that dead space wont matter because the valve is at the barrel...if the valve was at the chamber isnt that dead space??? (i know i am probly wrong but thats always what i thought) yell at me if u want but thats what i thought...maybe (most likely) im wrong...correct me

You're right. I'm not all there sometimes.

[Acdcmonkey1991]

The stock is actually part of the tank.