Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 55 users online :: 4 registered, 0 hidden and 51 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

2.5" heavy round

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
Sponsored 
  • Author
    Message

2.5" heavy round

Unread postAuthor: stuffbuilder » Sun May 24, 2015 4:33 pm

I just discovered the perfect ammo for a 2.5" sch 40 barrel: Redd's Wicked Apple cans. The fit is tight enough to not need wadding but not so tight they would get stuck without grease. My plan was to make something similar to those Nerf footballs with fins. The can will be filled with concrete or plaster or something heavy like that. I'm making a tail with some old CPVC pipe and cardboard fins that I'll stick into the wet concrete/plaster/etc. I'm not sure what to do about a nose cone if I even need one at all.

A few years ago I tried something similar with 90 calorie soda cans just filled with concrete (without fins), but I never got to use them since I went off to college before I finished the cannon. Now that I'm allowed to use the machine shop at school I should be able to make a good piston valve from a solid PVC slug.
  • 0

Attachments
0524151407.jpg
Its a 10 oz can. From some rough calculations the finished product should weight about a pound and a half.
User avatar
stuffbuilder
Sergeant
Sergeant
 
Posts: 80
Joined: Tue Aug 30, 2011 8:56 pm
Reputation: 1

Re: 2.5" heavy round

Unread postAuthor: Kilash » Fri May 29, 2015 12:36 am

Looks like any standard aluminum beverage can to me? If you want to make it aerodynamically stable, you can just fill it with concrete or plaster halfway and leave some air space on the back end to make it front heavy, like a Brenneke or Foster slug. Fins I find that unless you make them dead straight, tend to make accuracy worst.
  • 0

User avatar
Kilash
Corporal
Corporal
 
Posts: 70
Joined: Thu Jan 21, 2010 12:20 am
Reputation: 0

Re: 2.5" heavy round

Unread postAuthor: stuffbuilder » Fri May 29, 2015 3:06 am

Its a bit skinnier than a typical soda or beer can, although I guess beer comes in a wider variety of can sizes so its hard to say exactly. Either way, it fits perfectly in a 2.5" pipe.
  • 0

User avatar
stuffbuilder
Sergeant
Sergeant
 
Posts: 80
Joined: Tue Aug 30, 2011 8:56 pm
Reputation: 1

Return to Construction Materials/Ammo Discussion

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot], Yahoo [Bot]

Reputation System ©'