I made a cannon.

[Aerindel]

Core is a oil well drill shaft from Alaska. Forged reinforcement rings and straps and carriage parts.

2.75" bore. Firing concrete filled soda can projectiles.

Weight approx 150lbs.

 

[UserNameTaken]

I need one of these!

 

[Canon29]

One of these days... I'm going to attempt this with a log.

 

[Mountain trapper]

Nice. I made a smaller version of that years ago. For New Years eve at midnight I set it off in my front yard. Very impressive, except the concussion blew out 3 windows in the front of the house.

 

[SoJer]

...Firing concrete filled soda can projectiles.
Weight approx 150lbs.

Beautiful. How was the recoil - Did it 'jump'? I'm betting so (but not as much as one might Think, due to the weight..) How far back did it 'plow', at least? Just curious.. Totally Bitchin, Mang.

PS - I assume yer gonna, at Some point, look to cast yer own 'Rounds'? (didn't wanna say 'Balls'.. If so, this looks promising as a 'Model' / Test-shot: https://www.rotometals.com/salmon-lead-2-8-diameter-cannonball-sinker-5-lb-80oz/

..Could easily extract the 'eye' / 'rasp it down to-size' as-needed (if it's Truly 2.8") and/or torch it down a bit.. From there, you'd have a Nice model to mold-from, and then 'roll yer own', as I'm sure you'd prefer.

jd

 

[Supervisor42]

My only question is: how much black powder does it consume per shot?
We built small cannons when I was a kid that fired "D" batteries over 400 yards.
We proof-tested them with 3 heaping tablespoons of FF-bp and that recoil would drive the back end into the ground.
(We set them up at a 45° angle for maximum range.)

 

[zoomzoom]

We built small cannons when I was a kid that fired "D" batteries over 400 yards.

How did you ever find them? Were they Eveready's strapped to a flashlight?
An old friend of mine had a similar cannon to @Aerindel
He shot in the same direction all the time. What was once woods became what looked like a fire break about 40' wide. Got lots of firewood out of it from the trees that were felled by the cannon.

 

[Supervisor42]

How did you ever find them? Were they Eveready's strapped to a flashlight?
An old friend of mine had a similar cannon to @Aerindel
He shot in the same direction all the time. What was once woods became what looked like a fire break about 40' wide. Got lots of firewood out of it from the trees that were felled by the cannon.

We didn't. We had an unlimited supply of dead batteries because you couldn't burn them in the garage pile.
We just shot them down the bend in the river just to see who could shoot the furthest.
"D"s fit perfectly in 1-1/4" galvanized pipe, no wadding needed.
(I know I didn't just post that on the internet.)

 

[Hardcalibres]

My only question is: how much black powder does it consume per shot?
We built small cannons when I was a kid that fired "D" batteries over 400 yards.
We proof-tested them with 3 heaping tablespoons of FF-bp and that recoil would drive the back end into the ground.
(We set them up at a 45° angle for maximum range.)

Did you grow up on the moon?

45 degrees only achieves maximum range in a vacuum.

Where air resistance is applicable, the optimum barrel elevation for maximum range, is less than 45 degrees, but generally varies from the high twenties to high thirties, depending upon the ballistic parameters of the projectile, muzzle velocity and atmospheric parameters.

 

[randyt]

Not speaking fot the OP but in my blackpowder frontstuffer I use a squared load. Same volume of shot/projectile to powder. But for just making a noise and flash a reduced charge can be used

 

[Neb]

Core is a oil well drill shaft from Alaska. Forged reinforcement rings and straps and carriage parts.

2.75" bore. Firing concrete filled soda can projectiles.

Weight approx 150lbs.

In the end, how long did it take to cut the pipe?

Ben

 

[Peanut]

You could probably find a copy of this on the net... Naval ordnance and gunnery manual, 508pages. It has neat things like the range tables for 5 inch and 8 inch guns.