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breech for tennis ball

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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breech for tennis ball

Unread postAuthor: brettdotcom14 » Fri Jul 05, 2013 11:56 am

i am finishing up my gun been shooting it and come to realize its a PITA to load it every time.

I would like a sleeve design breech load, doesnt look like theres any pvc that will slide over 2 1/2 sch 40

is there some kind of thin metal pipe that will work?
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Unread postAuthor: Technician1002 » Fri Jul 05, 2013 12:16 pm

Use a compression coupling without the o rings and ends. Here is a video of exactly what you want. In this case it was used for a shirt launcher. FYI, At the very end of the video clip, you can see me in the blue shirt with the prototype cannon.

[youtube]http://www.youtube.com/watch?v=9Klxqav_6NM[/youtube]
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Last edited by Technician1002 on Fri Jul 05, 2013 10:16 pm, edited 1 time in total.
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Unread postAuthor: dewey-1 » Fri Jul 05, 2013 1:49 pm

Here is one that is readily available at many DIY stores.
KBI fittings at Menards
LASCO fittings:
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Unread postAuthor: brettdotcom14 » Fri Jul 05, 2013 1:52 pm

well no stores by me have 2 1/2 anything but that seems to be the ticket. perfect thanks guys
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Unread postAuthor: Blitz » Sat Jul 06, 2013 4:51 pm

You could always order online, you'd find one whether on Amazon, eBay, plumbingsupply.com, or industrial suppliers like mcmaster.com or grainger.com.
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Unread postAuthor: mattyzip77 » Tue Jul 09, 2013 7:13 am

Plumbingsupply.con is the best place to order pvc fittings and also the most inexpensive.... a 2 1/2 inch coupling would be ideal for a breech loader.....
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Unread postAuthor: brettdotcom14 » Sat Jul 27, 2013 7:21 pm

well the compression coupling was a bust all the air escapes from the breech hole. doesnt shoot anything now, bummer
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Unread postAuthor: jsefcik » Sun Jul 28, 2013 9:07 am

Take a coupler nd sand out the inside till it slides over it , did it for my golf ball breech works great
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