Yes, lots of great ideas to start with.
I like BigGrib link also http://www.spudfiles.com/forums/viewtopic,p,153709.html#153709

The " T " as a place for a magazine is nice too.

Now I just need to see if adding a CO2 tank supply would work.Kind of the same line as a T-shirt launcher.

I like to see ...

Clides golf ball gun ? do you have a link to it to see.


Thanks for the idea, now i just need to look at plans on a piston actuated co-axial with a simple sliding breech loader.....now thats a mouth full... 8)

Here is another question ......can a CO2 tank be used as power ?

Like those T-shirt launchers that are in use in areas.

Does any one know how much PSI in in those tanks ?

Thanks

I should clarify when I say I like to incorporate an auto loader.
I think a bolt action type may be a little easier to build.
Then again someone may have a better idea on feeding the tennis balls.

I guess it depends on how fast the trigger or rate of fire would be?

Thanks again

This is an awesome site.

I'd like a little help from the collective minds.

I would like to build a cannon to shoot tennis balls for training in helping my son in goalie practice.

Big power is not needed.I can use air or fuel.
I'd like to incorporate a auto loader for these tennis balls to ...