This is Necessary

201 Views 9 Replies 4 Participants Last post by TheDoubleD, 4 d ago

TheDoubleD

Discussion Starter · 18 d ago

I am going to be firing Seeppot (also known as "This is necessary) On the Round Rock Ranch near Tishomingo, OK, May 19th at noon. Want to watch, come on down.

This going to be a photo session in preparation for selling.

Want to buy Seeppot come on down and bring a pocket full of cash.

Be sure to click on this first link.

6oz

http://www.go2gbo.com/forums/blackpowder-mortar-and-cannon-sponsored-by-seacoast-artillery/k-i-s-s-bowling-ball-mortar/K.I.S.S. Bowling ball mortar on Britis...

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This shot sent a 16 lbs bowling ball a measured 1.04 miles down range.

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Bullbuster

· #2 · 18 d ago

Bring on the Thunder makers!! That’s awesome.

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TheDoubleD

Discussion Starter · #3 · 18 d ago

Yes I also have thunder mugs

Is it a dud!

Thunder mug

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dennishoddy

· #4 · 18 d ago

TheDoubleD said:
Yes I also have thunder mugs

Is it a dud!

Thunder mug

youtube.com

Of course those are blanks. Did you use black powder with just a wad on top?

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Thunder mugs are loaded with powder and then filled to the top with flour. They are loud. The first time i fired one in front of the porch, it knock a picture off the wall in the laundry room. I'm not allowed to shoot them off there anymore. "Yes Dear!"

The blanks for the cannon are foil cartridges much like the paper cartridges made for old muzzle loaders. The charge is loaded by volume in the foil cartridge and flour equal in volume to the black powder charge is load in the cartridge on top of the powder. The entire cartridge is then loaded in the cannon. Charge is then pricked via the vent and fused for firing. That cannon does recoil even with a blank. I have never live fired that cannon, something I hope t correct this coming week end.

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Bullbuster

· #6 · 17 d ago (Edited)

You ever make plaster balls to shoot? I knew a guy who did for his. They were croquet sized balls.

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murphranch

· #7 · 16 d ago

TheDoubleD said:
Yes I also have thunder mugs

Is it a dud!

Thunder mug

youtube.com

I’d let you be my neighbor any time.

Sent from my iPad using Tapatalk

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TheDoubleD

Discussion Starter · #8 · 16 d ago

Bullbuster said:
You ever make plaster balls to shoot? I knew a guy who did for his. They were crochet sized balls.

Crochet or croquet?

Plaster? No But I have cast a bunch of zinc round balls in golf ball size and round balls the same diameter as pop cans. Most cannon balls were iron and zinc is close to the same mass as iron. Lead is too heavy in cannon size and causes to high pressures. It is also to easily deformed. Nothing worse than getting a 1 inch diameter round lead ball stuck 12 inches down 24 inch bore that is loaded with 200 grains of Cannon grade powder. Pretty hairy scary day that.

I have cancelled and to be rescheduled the bowling ball shoot, due to weather. I don't want to transport this gun 120 miles on an open trailer in heavy rain and thunderstorms.

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Bullbuster

· #9 · 10 d ago

TheDoubleD said:
Crochet or croquet?

Plaster? No But I have cast a bunch of zinc round balls in golf ball size and round balls the same diameter as pop cans. Most cannon balls were iron and zinc is close to the same mass as iron. Lead is too heavy in cannon size and causes to high pressures. It is also to easily deformed. Nothing worse than getting a 1 inch diameter round lead ball stuck 12 inches down 24 inch bore that is loaded with 200 grains of Cannon grade powder. Pretty hairy scary day that.

I have cancelled and to be rescheduled the bowling ball shoot, due to weather. I don't want to transport this gun 120 miles on an open trailer in heavy rain and thunderstorms.

Dang auto text typo. Hard to shoot crochet round balls from a cannon lol

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TheDoubleD

Discussion Starter · #10 · 4 d ago (Edited)

I have moderated the cannon making board over on GBOoutdoors for over 20 years. In that time it seems if it is round or cylindrical we have had someone make a cannon for it.

I don't recall anyone making a croquet ball cannon or mortar.

A croquet ball 3 5/8 inch in diameter. There is 1/40 of bore diameter for windage required for cannon. So 3.625 /39 = .093. .093 x 40 = a bore 3.718. Cannons and mortars require one caliber wall thickness over the chamber area. So the barrel would have to be 11.154" in diameter over the breech to meet minimum safety standards. A 6 PDR is 3.67". This is a pretty big gun gun to make on a home shop lathe. I do have a 6PDR mortar but it is a coehorn with a subchamber.

(Please forgive me this I have been housebound and bed ridden for more or less the past week. I was so bad, and had all the symptoms that the wife hauled me off to the ER to be checked for Covid. There I find out that I have never had Covid and all I have is a common cold. Followed by reminder from the Dr. that these type things have a greater effect on the elderly. On the ride home the wife told me calm down and reminded me that we are now in the elderly catagory-bah humbug. The respiratory test even included a Bordetella test for which I was negative-my dog was relieved. So yes I am bored.)

Oh I could not find a regulation diameter for a crochet ball.

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