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j king
02-03-2009, 11:46 PM
I started to build a cannon,I wanted to use a reloaded 12 guage shell without shot or any projectile.A buddy told me that that is illegal to build.Is this true?

I was making the barrel bore larger than the chamber.Just wanted a quick and easy way to set it off.

10KPete
02-04-2009, 12:44 AM
I know that you can buy 'signal' cannon that use blanks so I don't know why you couldn't build one.

You might check this site and maybe ask them:

http://www.cannon-mania.com/ArsenalStore.htm

Pete

JCHannum
02-04-2009, 08:42 AM
As far as I know, there is no problem with using 12 ga. blanks for a signal cannon. Winchester makes a 10 ga cannon, and there are a few others.

Cannon Mania does not have a great reputation, they are a store. Grey Beard Outdoors has a very good forum on cannons, and can answer your questions. You will have to register to log on.

http://www.go2gbo.com/forums//index.php

BigBoy1
02-04-2009, 02:37 PM
Your "friend" may be mixing laws with folklore and coming up with bad info. There are laws concerning weapons with bores larger than 0.5" but shotguns and black powder guns are exempted from the laws.

Building a cannon to accept 12ga. blank shells is not a trivial process as the entire breech mechanism will have to be design and fabricated to open and close and withstand the pressures.

Here are some photos of the cannon I built. It has a 0.75" dia bore and the barrel is 14" long.

http://i163.photobucket.com/albums/t308/i422twains/Kannon1.jpg
http://i163.photobucket.com/albums/t308/i422twains/Kannon2.jpg

Bill

chriskat
02-04-2009, 08:04 PM
I don't mean to hi-jack the thread but...

Bill, did you get drawings of the cannon or just design it yourself? I've wanted to build a replica of the cannons used on the Constellation but don't know where to look for drawings.

Thanks for any help.

Jeff

JCHannum
02-04-2009, 09:39 PM
Jerry Howell has a good set of plans for a cannon that is typical of those used on the Constitution. It makes up into a pretty model that is shootable. I have made several of them for friends & family.

http://www.jerry-howell.com/1779.html

10KPete
02-05-2009, 01:01 AM
Heeeyyyyy, that's one nice lookin' little gun ya made there!

Pete

Rusty Marlin
02-05-2009, 07:57 AM
I started to build a cannon,I wanted to use a reloaded 12 guage shell without shot or any projectile.A buddy told me that that is illegal to build.Is this true?

I was making the barrel bore larger than the chamber.Just wanted a quick and easy way to set it off.


Where do you live? In the USA its perfectly legal, but as you've chosen not to let us know where you are, your friend might be 100% correct.

rbertalotto
02-06-2009, 07:40 AM
Why would a canon that accepts a shotgun shell not be considered a "short barrel shotgun"? I thought ANY shotgun with a barrel under 18" was illegal......

38_Cal
02-06-2009, 06:35 PM
IIRC, the 10 ga. blanks are 2 1/2" shells. The loaded 10 ga. ammo being commercially produced is all 3 1/2", so I imagine that this gets around the "short barreled shotgun" restriction. Don't think it would fly for a 12 ga. canon, though, since the blanks on the market are 2 3/4", same as a majority of shotguns made for sale in the U.S. in the past eighty years. It's probably worth a letter to the BATF in Washington, though. You may just get lucky and get a dispensation...

David
Montezuma, IA

bj139
02-06-2009, 07:06 PM
I started to build a cannon,I wanted to use a reloaded 12 guage shell without shot or any projectile.A buddy told me that that is illegal to build.Is this true?

I was making the barrel bore larger than the chamber.Just wanted a quick and easy way to set it off.
Do you just want it to make noise? If so, why not have it use only a 209 primer? The smokeless powder in shotgun shells will not burn without pressure so the unburned powder will just fly out the barrel. In order to make a bigger BOOM you may have to try blackpowder which will BOOM without pressure. I like the primer only idea. You could turn it down and tune it to make the proper pitched BOOM, whatever that might be.

plastikosmd
02-06-2009, 09:03 PM
here is my newest cannon. Lapan's foundry in Glen's Falls NY, 1970's or so. 2.25 bore..perfect for concrete filled tomato paste can launching
http://i76.photobucket.com/albums/j5/plastikosmd/leftside.jpg