SpudFiles

No I meant .028 wall thickness. Which gives .319 bore, and 5/16 ammo is .313, so a nice fit.

Maverik, let us know about those dimensions when you get a chance, I'm curious now.

Those were just the only 5/16 ammo I could think of off hand, would obviously need work for stability. Unless you're just doing point blank penetration .

Yeah those slingshot shot have flat sides, it's what I used in my first cannon a few years ago. Still managed to put 'em flush into a 2x4 with the help of a 6' barrel, though 8).

daccel wrote:No I meant .028 wall thickness. Which gives .319 bore, and 5/16 ammo is .313, so a nice fit.

OK, I got it now, "3/8" with the wall thickness into account.
That will probably work.
I am pretty beat right now.(Just got back from a weekend road trip on my Harley-Davidson, It's an awesome cruiser, but halfway through, a bunch of my bolts rattled loose...little by little, everything is getting loctite'd ) Probably TMI but that's my excuse, besides I got sunburned like a lobster.

... those slingshot shot have flat sides, it's what I used in my first cannon a few years ago. Still managed to put 'em flush into a 2x4 with the help of a 6' barrel, though 8).

I added a .25 brass barrel sleeved into lamppipe barrel to a paintball gun bolt, had a magazine design ready to add, but was very disappointed with the .25 ammo on my first (or one of first) projects. It only imbedded them into a phone book. 8)

ok, the wall thickness is a bit less than 1/16", so the id is a little bit more than .25"

It's an awesome cruiser, but halfway through, a bunch of my bolts rattled loose

The price of "character". 8)

Maverik, nice little shooter. Well done.