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?

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

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)

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.

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,

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,

"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

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

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

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 ?

~89 m/s @45 deg


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?

jk

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

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

"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

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

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

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,

"Gunner Asch" wrote in message
news
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

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?

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?

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.

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...