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Bowling Ball Cannon
http://dallas.craigslist.org/dal/bar/2044707861.html
He claims half mile range. What would the muzzle velocity have to be to chunk a bowling ball that far? |
Bowling Ball Cannon
wrote in message ... http://dallas.craigslist.org/dal/bar/2044707861.html He claims half mile range. What would the muzzle velocity have to be to chunk a bowling ball that far? They are a lot of fun, and I have seen videos of them. But, this one ............. what a POS fab job! I want to make one, but use an inflatable ball to block the powder charge, and just use it in my little (900 people) community for a noisemaker on special occasions. Should make a resounding report. I had one explosion with the gopher propane/oxygen system that rolled around the canyons and hills for a good five seconds. I have read that they will blow out windows at a close range, and can approach 200 db or more. A simple dead cylinder, and a little imagination is all it takes. Some gunpowder, some rope fuse from a gun show. A fellow could buy old gunpowder fairly cheap from reloaders, I'd imagine. Would that burn too hot, and create too much pressure? What would be the best gunpowder so as not to overload it? But with the essentially open end, the pressures should not be too bad. Finding a reasonably priced source of bowling balls might be difficult. One fellow let his hang from a chain when not in use, used it as a bell if anyone came snooping............. Steve Heart surgery pending? Read up and prepare. Learn how to care for a friend. http://cabgbypasssurgery.com |
Bowling Ball Cannon
On 11/6/2010 09:54, wrote:
http://dallas.craigslist.org/dal/bar/2044707861.html He claims half mile range. What would the muzzle velocity have to be to chunk a bowling ball that far? Go he http://www.crazybuilders.com/item.ph...roject_section Ball diameter=8.6 inches Ball weight=16 lbs Cd of smooth sphere=.1 321.85 ft/sec @45 degreee launch angle -- Steve Walker (remove wallet to reply) |
Bowling Ball Cannon
On Sat, 06 Nov 2010 12:27:11 -0400, Steve Walker
wrote: On 11/6/2010 09:54, wrote: http://dallas.craigslist.org/dal/bar/2044707861.html He claims half mile range. What would the muzzle velocity have to be to chunk a bowling ball that far? Go he http://www.crazybuilders.com/item.ph...roject_section Ball diameter=8.6 inches Ball weight=16 lbs Cd of smooth sphere=.1 321.85 ft/sec @45 degreee launch angle With a barrel 15" long, if peak pressure = 2* avg pressure, the peak pressure necessary would only be about 995 PSI. By comparison, the peak pressure in a .45ACP round is 25,000 PSI and that in a .308 rifle is about 60,000 PSI. |
Bowling Ball Cannon
On Sat, 6 Nov 2010 08:43:07 -0700, "Steve B"
wrote: wrote in message .. . http://dallas.craigslist.org/dal/bar/2044707861.html He claims half mile range. What would the muzzle velocity have to be to chunk a bowling ball that far? They are a lot of fun, and I have seen videos of them. But, this one ............ what a POS fab job! I want to make one, but use an inflatable ball to block the powder charge, and just use it in my little (900 people) community for a noisemaker on special occasions. Should make a resounding report. I had one explosion with the gopher propane/oxygen system that rolled around the canyons and hills for a good five seconds. I have read that they will blow out windows at a close range, and can approach 200 db or more. A simple dead cylinder, and a little imagination is all it takes. Some gunpowder, some rope fuse from a gun show. A fellow could buy old gunpowder fairly cheap from reloaders, I'd imagine. Would that burn too hot, and create too much pressure? NO!!!!!!!!!!!!!!!!!!!!!!!!!!!! Black powder ONLY!!! What would be the best gunpowder so as not to overload it? But with the essentially open end, the pressures should not be too bad. Finding a reasonably priced source of bowling balls might be difficult. One fellow let his hang from a chain when not in use, used it as a bell if anyone came snooping............. Steve Heart surgery pending? Read up and prepare. Learn how to care for a friend. http://cabgbypasssurgery.com -- "Confiscating wealth from those who have earned it, inherited it, or got lucky is never going to help 'the poor.' Poverty isn't caused by some people having more money than others, just as obesity isn't caused by McDonald's serving super-sized orders of French fries Poverty, like obesity, is caused by the life choices that dictate results." - John Tucci, |
Bowling Ball Cannon
On Sat, 06 Nov 2010 12:27:11 -0400, Steve Walker
wrote: On 11/6/2010 09:54, wrote: http://dallas.craigslist.org/dal/bar/2044707861.html He claims half mile range. What would the muzzle velocity have to be to chunk a bowling ball that far? Go he http://www.crazybuilders.com/item.ph...roject_section Ball diameter=8.6 inches Ball weight=16 lbs Cd of smooth sphere=.1 321.85 ft/sec @45 degreee launch angle Ayup. BB guns shoot faster than that. Developing the energy though..thats tougher... -- "Confiscating wealth from those who have earned it, inherited it, or got lucky is never going to help 'the poor.' Poverty isn't caused by some people having more money than others, just as obesity isn't caused by McDonald's serving super-sized orders of French fries Poverty, like obesity, is caused by the life choices that dictate results." - John Tucci, |
Bowling Ball Cannon
"Gunner Asch" wrote A simple dead cylinder, and a little imagination is all it takes. Some gunpowder, some rope fuse from a gun show. A fellow could buy old gunpowder fairly cheap from reloaders, I'd imagine. Would that burn too hot, and create too much pressure? NO!!!!!!!!!!!!!!!!!!!!!!!!!!!! Black powder ONLY!!! TYVM. Saved me some money, and I'm sure the neighbors are gonna appreciate it, too. Reminds me of the time we set off the 55 gal. steel barrel with OA mix and spark plug. Man, that sucker was LOUD! Got a couple of windows, too. We had it cleaned up by the time the PD got there, and all we could say to their questions was, "Huh?" Steve |
Bowling Ball Cannon
He claims half mile range. Youtube videos claim up to two miles. Some of these things are aimed towards cars, and some very vertical where the landing point might be the launch tube. Or nearby house. Or car. Still searching for one where the bowling ball lands where it ain't supposed to. They really fly. Steve Heart surgery pending? Read up and prepare. Learn how to care for a friend. http://cabgbypasssurgery.com |
Bowling Ball Cannon
On Sat, 06 Nov 2010 12:28:35 -0700, Gunner Asch
wrote: On Sat, 06 Nov 2010 12:27:11 -0400, Steve Walker wrote: On 11/6/2010 09:54, wrote: http://dallas.craigslist.org/dal/bar/2044707861.html He claims half mile range. What would the muzzle velocity have to be to chunk a bowling ball that far? Go he http://www.crazybuilders.com/item.ph...roject_section Ball diameter=8.6 inches Ball weight=16 lbs Cd of smooth sphere=.1 321.85 ft/sec @45 degreee launch angle Ayup. BB guns shoot faster than that. Developing the energy though..thats tougher... About 25,760 ft-lbf. Plenty of stopping power, but a bit hard to conceal. G |
Bowling Ball Cannon
Steve B wrote:
"Gunner Asch" wrote A simple dead cylinder, and a little imagination is all it takes. Some gunpowder, some rope fuse from a gun show. A fellow could buy old gunpowder fairly cheap from reloaders, I'd imagine. Would that burn too hot, and create too much pressure? NO!!!!!!!!!!!!!!!!!!!!!!!!!!!! Black powder ONLY!!! TYVM. Saved me some money, and I'm sure the neighbors are gonna appreciate it, too. Reminds me of the time we set off the 55 gal. steel barrel with OA mix and spark plug. Man, that sucker was LOUD! Got a couple of windows, too. We had it cleaned up by the time the PD got there, and all we could say to their questions was, "Huh?" Steve Ears still ringing when they got there , eh ? -- Snag Got Guns ? |
Bowling Ball Cannon
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Bowling Ball Cannon
In article ,
Don Foreman wrote: On Sat, 06 Nov 2010 12:27:11 -0400, Steve Walker wrote: On 11/6/2010 09:54, wrote: http://dallas.craigslist.org/dal/bar/2044707861.html He claims half mile range. What would the muzzle velocity have to be to chunk a bowling ball that far? Go he http://www.crazybuilders.com/item.ph...roject_section Ball diameter=8.6 inches Ball weight=16 lbs Cd of smooth sphere=.1 321.85 ft/sec @45 degreee launch angle With a barrel 15" long, if peak pressure = 2* avg pressure, the peak pressure necessary would only be about 995 PSI. By comparison, the peak pressure in a .45ACP round is 25,000 PSI and that in a .308 rifle is about 60,000 PSI. One wants a large safety factor in firearms. That little tube does not look adequate to contain a few thousand psi, at least not for many shots. Joe Gwinn |
Bowling Ball Cannon
What is the spin ? The ball might be 'off center'.
Martin On 11/6/2010 11:27 AM, Steve Walker wrote: On 11/6/2010 09:54, wrote: http://dallas.craigslist.org/dal/bar/2044707861.html He claims half mile range. What would the muzzle velocity have to be to chunk a bowling ball that far? Go he http://www.crazybuilders.com/item.ph...roject_section Ball diameter=8.6 inches Ball weight=16 lbs Cd of smooth sphere=.1 321.85 ft/sec @45 degreee launch angle |
Bowling Ball Cannon
"Martin Eastburn" wrote in message ... What is the spin ? The ball might be 'off center'. Martin That could be affected by the holes, and I have heard people on youtube videos say that the noise it makes coming down has something to do with the holes, too. Just like a pipe you blow over the end, a whistling sound should be produced by the holes. I want to see where one lands. Steve |
Bowling Ball Cannon
On Sat, 06 Nov 2010 19:10:56 -0400, Joseph Gwinn
wrote: In article , Don Foreman wrote: On Sat, 06 Nov 2010 12:27:11 -0400, Steve Walker wrote: On 11/6/2010 09:54, wrote: http://dallas.craigslist.org/dal/bar/2044707861.html He claims half mile range. What would the muzzle velocity have to be to chunk a bowling ball that far? Go he http://www.crazybuilders.com/item.ph...roject_section Ball diameter=8.6 inches Ball weight=16 lbs Cd of smooth sphere=.1 321.85 ft/sec @45 degreee launch angle With a barrel 15" long, if peak pressure = 2* avg pressure, the peak pressure necessary would only be about 995 PSI. By comparison, the peak pressure in a .45ACP round is 25,000 PSI and that in a .308 rifle is about 60,000 PSI. One wants a large safety factor in firearms. That little tube does not look adequate to contain a few thousand psi, at least not for many shots. "Looks pretty thick to me. What's the worst that could happen?" "Oh, so THAT's what shrapnel feels like entering the body..." -- If we attend continually and promptly to the little that we can do, we shall ere long be surprised to find how little remains that we cannot do. -- Samuel Butler |
Bowling Ball Cannon
On Nov 6, 11:43*am, "Steve B" wrote:
... A simple dead cylinder, and a little imagination is all it takes. * ... Imagine making one like this: http://www.slowlane.net/travel/photo...sar_Cannon.jpg |
Bowling Ball Cannon
On Sat, 6 Nov 2010 12:55:33 -0700, "Steve B"
wrote: "Gunner Asch" wrote A simple dead cylinder, and a little imagination is all it takes. Some gunpowder, some rope fuse from a gun show. A fellow could buy old gunpowder fairly cheap from reloaders, I'd imagine. Would that burn too hot, and create too much pressure? NO!!!!!!!!!!!!!!!!!!!!!!!!!!!! Black powder ONLY!!! TYVM. Saved me some money, and I'm sure the neighbors are gonna appreciate it, too. And those the love you would appreciate it as well. Smokless gun powder...is nitroglycerine based and it will indeed generate 100,000 PSI if implimented incorrectly. Black powder will generate at most..about 35,000 psi if implimented incorrectly and after that..it simply burns in a relatively steady pressure. Smokeless gun powder simply keeps increasing its PSI until its consumed..or the vessel blows up Gunner Reminds me of the time we set off the 55 gal. steel barrel with OA mix and spark plug. Man, that sucker was LOUD! Got a couple of windows, too. We had it cleaned up by the time the PD got there, and all we could say to their questions was, "Huh?" Steve -- "Confiscating wealth from those who have earned it, inherited it, or got lucky is never going to help 'the poor.' Poverty isn't caused by some people having more money than others, just as obesity isn't caused by McDonald's serving super-sized orders of French fries Poverty, like obesity, is caused by the life choices that dictate results." - John Tucci, |
Bowling Ball Cannon
"Gunner Asch" wrote in message ... On Sat, 6 Nov 2010 12:55:33 -0700, "Steve B" wrote: "Gunner Asch" wrote A simple dead cylinder, and a little imagination is all it takes. Some gunpowder, some rope fuse from a gun show. A fellow could buy old gunpowder fairly cheap from reloaders, I'd imagine. Would that burn too hot, and create too much pressure? NO!!!!!!!!!!!!!!!!!!!!!!!!!!!! Black powder ONLY!!! TYVM. Saved me some money, and I'm sure the neighbors are gonna appreciate it, too. And those the love you would appreciate it as well. Smokless gun powder...is nitroglycerine based and it will indeed generate 100,000 PSI if implimented incorrectly. Black powder will generate at most..about 35,000 psi if implimented incorrectly and after that..it simply burns in a relatively steady pressure. Smokeless gun powder simply keeps increasing its PSI until its consumed..or the vessel blows up Gunner Which it does all the faster when contained. Burning smokeless powder, uncontained, can lull one in to a false sense of security, due to it's slow ignition rate. Contain it and all that goes away, and very quickly. Harold |
Bowling Ball Cannon
Snag wrote:
Steve B wrote: "Gunner wrote A simple dead cylinder, and a little imagination is all it takes. Some gunpowder, some rope fuse from a gun show. A fellow could buy old gunpowder fairly cheap from reloaders, I'd imagine. Would that burn too hot, and create too much pressure? NO!!!!!!!!!!!!!!!!!!!!!!!!!!!! Black powder ONLY!!! TYVM. Saved me some money, and I'm sure the neighbors are gonna appreciate it, too. Reminds me of the time we set off the 55 gal. steel barrel with OA mix and spark plug. Man, that sucker was LOUD! Got a couple of windows, too. We had it cleaned up by the time the PD got there, and all we could say to their questions was, "Huh?" Steve Ears still ringing when they got there , eh ? WHAT? |
Bowling Ball Cannon
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Bowling Ball Cannon
Jim Stewart wrote: wrote: http://dallas.craigslist.org/dal/bar/2044707861.html He claims half mile range. What would the muzzle velocity have to be to chunk a bowling ball that far? So I gotta ask, couldn't a ****ed-off cop find some sort of felony to write you up on if he caught you shooting this thing? Not if your aim is good... ;-) -- Politicians should only get paid if the budget is balanced, and there is enough left over to pay them. |
Bowling Ball Cannon
On Mon, 08 Nov 2010 11:49:12 -0800, Jim Stewart
wrote: wrote: http://dallas.craigslist.org/dal/bar/2044707861.html He claims half mile range. What would the muzzle velocity have to be to chunk a bowling ball that far? So I gotta ask, couldn't a ****ed-off cop find some sort of felony to write you up on if he caught you shooting this thing? Yep, he'd call it a "destructive device" and your gluteus would be lawn growth... The whole thing sounds ridiculous. Now, in the Tripoli Rocketry Association, we have something far more sensible. BOWLING BALL LOFT! You build a rocket to take a bowling ball of specific weight as high as possible, and return it safely, on a rocket motor of specified size. (Once they did a contest that required lofting TWO 16 lb balls.) This sorta thing is done waaaaay out in the middle of a really, really big wheat field or desert, so the only ones who can get hurt are the idiots flying the rockets... |
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