Boston explosives

I’m setting aside the tears that come from looking at the pictures and reading the articles and just channeling “Spock” as best I can on something I know a little bit about.

The first thing I noticed from watching the video and then from the still photo I found at the Los Angles Times is that this looks like a crude homemade bomb.

BostonBombViaLaTimes

Here is a cropped version from the Boston Globe YouTube video:

BostonBombViaBostonGlobeVideo

This is a full two seconds later from that same video:

BostonBombViaBostonGlobeVideoPlus2Sec

See all that flame? And it looks as if there is still fuel burning in the cloud two seconds after the explosion.

I’m almost certain that no commercial or military explosive produces that much flame. Something like that would be totally banned in the mining industry.

That may mean there was a great excess of fuel in the explosive composition. Boomerite has an excess of oxygen which makes for easier detonation. Maximum power comes from a balance of oxygen and fuel. Some explosives are naturally oxygen or fuel rich. For example TNT is fuel rich. During WW II they would add ammonium nitrate which is (under the proper conditions) an explosive that is oxygen rich. The excess oxygen in the AN increased the power of the detonation by consuming the excess fuel of the TNT.

With that much flame persisting that long after the explosion occurred means huge amounts of power was wasted in light and relatively slowly expanding gases. This was not a military grade explosive. Getting the most bang for the least weight is worth the cost of getting the oxygen balance right.

This means it’s a homemade explosive.

Another possibility is that it wasn’t really a detonation at all but rather a deflagration. For example gun powders typically do not detonate. They “just” burn very rapidly. The flash you see at the muzzle of your gun at night (and sometimes even in bright sunlight) is composed mostly of burning particles of gunpowder. Confine the powder in a strong closed container, such as a pipe, and you get an explosion when the container bursts.

From the sound of the explosion and the speed of the blast product development I’m leaning toward a deflagration.

Mr. Completely sent me an email asking if I could “rule either in or out that readily available reloading powder could have been used”. My answer to that question is that I think it is definitely possible.

Update April 16, 6:20 AM: At least one source says:

…the devices used gunpowder as the explosive and were packed with ball bearings and other shrapnel to maximise injuries.

Update April 16, 1:25 PM: Rick Boatwright has an excellent analysis which points to black powder being the explosive.

Politeness

Apparently when I’m woken up in the middle of the night and asked to roll on my side because I snore when I sleep on my back I ask, “Which side?”

If you were to believe all the lies told by the anti-gun people about bumping into a shopping cart in the aisle at Safeway causing mass shootings you might expect a different outcome. The most plausible outcome in their world view would seem to be I would just shoot them with the gun next to the bed and continue sleeping on my back.

Perhaps Heinlein was right about being armed and politeness.

Quote of the day—Lisie G

Boomershoot 2013 shirts

I’ve created the Boomershoot 2013 Cafepress store.

The image (via Barron Barnett, see also his post) on the products is:

Cafepress

You don’t have to be a participant to buy from the store. And there is still time to enter the event if you do want to participate.

We used 14 pounds of explosives and 13 gallons of gasoline for the fireball in the image above.

Fireball2012Configuration

I got a really good deal on 150 gallons of fuel this year. Ry was a little evasive in his answers but I’m pretty sure he promised not to use it all up this year. You should attend to find out what he has planned. Nomex clothing is optional.

Random thought of the day

If universal respect for the right to keep and bear arms saved just one nation from just one genocide wouldn’t it be worth it?

Quote of the day—Cook’s Helper

Cook: [Pointing to a very well endowed woman’s breast area] You have some soup on your shirt there.

Cook’s Helper: Damn!

Cook’s Helper 2: Would like someone to lick it off for you?

Cook’s Helper: One of my three partners will get to it before you could.

Overheard April 13, 2013
[I have interesting friends.—Joe]

Quote of the day—Mine Safety and Health Administration

Explosives; magazines.

[Shall be]

(4) Reasonably bullet resistant.

(9) Posted with suitable danger signs so located that a bullet passing through the face of a sign will not strike the magazine.

Mine Safety and Health Administration
Title 30 CFR § 77.1301
[Why do people shoot at signs? I just don’t get it. I know that they do because I have seen a lot of shot-up road signs.

And shooting at an explosives magazine is well beyond shooting at the yellow 35 MPH caution sign for going around the curve ahead. It’s nominating yourself for a Darwin award. You would think that seeing a sign that that even hints at “EXTREME DANGER! EXPLOSIVES!” would be enough to give Cletus a clue to keep the muzzle pointed in some other direction. But no. We have to have a government regulation to put the sign in a location such that it has a proper backstop between it and the nearby magazine.

At times one has to wonder about the viability of the human race or speculate that perhaps we discovered fire 100,000 years too soon.—Joe]

The rest of the story

Remember last January when I helped out a new author with some gun and explosives stuff for her story?

Here is the rest of the story.

I haven’t had time to read it all but I’m hooked and making good progress.

Balance

It should be very telling when people claim a gun control debate is balanced when the line up looks like this:

This balanced panel of experts will debate U.S. gun reform as Goucher College’s Spring 2013 President’s Forum presentation on Monday, April 15, at 8 p.m. in the Hyman Forum of the Athenaeum:

  • Colleen Barry, associate professor and associate chair for research and practice, the Johns Hopkins Bloomberg School of Public Health
  • Sen. James Brochin, Democrat, District 42, Baltimore County
  • Josh Horwitz, executive director, Coalition to Stop Gun Violence
  • Jeffrey Swanson, professor in psychiatry and behavioral sciences, Duke University School of Medicine
  • Gayle Trotter, general counsel, Independent Women’s Forum, and a conservative writer and political commentator

I commented on Barry and Swanson here.

Josh Horwitz’s title and organization tells you everything you need to know about him.

Maryland State Sen. James Brochin says he supports an “assault weapon” ban. So that puts him on the anti-gun side as well.

It’s only Gayle Trotter on the side of gun rights against five anti-gun people.

The anti-gun people think they need five people to be the balance of one person advocating for gun rights. Yeah, I suppose that is about right. One woman (with a gun) is about the equal of five anti-gun people trying to take her down.

Quote of the day—bitterb

Brady Campaign supporters are promising that Tony Bennett, a very old singer from my grandparents’ generation, will call me if I sign up.

bitterb (@bitterb)
Tweeted April 12, 2013
[As others have recently said and demonstrated; Bennett is confused. He thinks private ownership of “assault weapons” was the downfall of Germany:

I just believe that assault weapons, they were invented for war, they shouldn’t be on our streets here.

It’s the kind of turn that happened to the great country of Germany, when Nazis came over and created tragic things and they had to be told off. And if we continue this kind of violence and accept it in our country, the rest of the world is going to really take care of us in a very bad way.

Tony is way past his prime and so is the Brady Campaign. I think they are a good match for each other. They should share a room in a nice nursing home.—Joe]

It’s black it must be evil

We have long known that anti-gun people openly show their hatred for black rifles and handguns while sometimes giving lip service to tolerating rifles with light brown colors and silver colored handguns. But did you know they also have a bias against black ammunition too?

It’s true.

On March 12, 2013 the Board of Supervisors of the City and County of San Francisco passed an ordinance stating:

SEC. 618. PROHIBITED AMMUNITION.
(a) Definition. For purposes of this Section, “Prohibited Ammunition” shall mean:
(1) Ammunition sold under the brand name “Winchester Black Talon,” or that has physical properties resulting in ballistics performance identical to ammunition presently or formerly sold under the brand name Winchester Black Talon; or,
(2) Ammunition designated by its manufacturer for purchase by law enforcement or military agencies only, unless other ammunition is available to the general public that has physical properties resulting in ballistics performance identical to such ammunition.
{b) Possession Prohibited; Exceptions. No person, firm, corporation or other entity may possess Prohibited Ammunition within the City and County of San Francisco…

It goes on to list exceptions for police, military, and a few other “special people”.

But how are you to know if your ammunition “has physical properties resulting in ballistics performance identical to…Winchester Black Talon”? They, sort of, have an answer to that:

The San Francisco Police Department shall prepare or cause to be prepared a public database of brands and product lines of ammunition meeting the definition of “Prohibited Ammunition” in subsection (a). Failure of the Police Department to create or maintain such a database, or the omission from the database of a particular brand or product line of ammunition otherwise qualifying as “Prohibited Ammunition, under subsection (a), shall not be a defense to or otherwise excuse a violation of this Section.

What? Even if your ammo is not in the database that cannot be used as a defense? Then how can you possibly know if you are breaking the law?

It gets even more interesting as C.D. Michel points out (emphasis added):

NRA’s lawyers then obtained this letter from the San Francisco Police Department (SFPD). The letter confirms not only that the the ordinance doesn’t ban hollow-point ammunition, in fact, the new ordinance applies to virtually no ammunition. The SFPD letter clarifies that ammunition must be “identical in all ways” to Black Talon in order to be prohibited under the new ordinance. Black Talon itself has been out of production for nearly two decades. Ammunition experts have reviewed the SFPD’s position, and confirmed that there is no current production ammunition that is identical in all respects or performs identically in all ways to the Black Talon cartridge. So the City’s ordinance basically applies to nothing – save for those few left over Black Talon cartridges that may still be in circulation.

This would all be funny, in a pathetic sort of way like laughing at the 10-year old kid so dimwitted they can’t tie his own shoes, if it weren’t for the fact that the imbeciles making this law can have you thrown in jail for six months and/or fined $1000 if you violate it.

In case you weren’t involved in the gun rights movement 20 years ago Black Talon ammo was on most of the television “news” shows with animations showing the expanded bullet behaving, and described as, “a buzz saw” going through a human body. Never mind that the twist rate of the barrel, for say 9mm, is on the order of one turn for every 18 inches of travel. Hence the bullet spin is so slow it it wouldn’t even make a single turn going completely through an average sized person, let alone act like a buzz saw.

My guess is that the San Francisco idiots were having drug induced flash backs and remembered “Black Talon” and decided to “do something”. The thing is that Winchester was just a little too fast for them. Those San Francisco law makers are more than a little slow. Winchester beat got the drop on them by about 20 years.

What happened, 20 years ago, was that as a result of all the negative publicity there were people in congress writing up bills to ban the ammo. This was the dark ages of gun ownership and there was a good chance they could have gotten the votes to do it. Of course the sales of Black Talon exploded but Winchester did what was probably the appropriate thing even though they had a hit product on their hands. They discontinued it. They then replaced it with what they called “Ranger” which was also “SXT”, just like the Black Talon ammo. This had the politically acceptable jacket color of copper instead of black. They also put “Law Enforcement” on the boxes but the gun shops were happy to sell it to you and probably even bumped the margins a bit in the process.

Winchester said the SXT name stood for “Supreme eXpansion Technology”. But the people in the gun shops would tell you it really meant “Same eXact Thing”.

The media and anti-gun legislators, dolts that they are, didn’t catch on. I don’t know if they were fooled by the politically correct coloring or couldn’t understand the meaning of “expansion” but they left the new ammo alone.

I have a strong tendency to buy banned books and guns. And it should be no surprise I also bought, what I thought would soon be, banned ammo. I still have a box of the evil Black Talon in 9mm I bought from Lance who was my local gun runner:

WP_20130411_002Corrected

If the Board of Supervisors of the City and County of San Francisco want them they can come and get them. I’ll be glad to let them have the evil black bullets. I’ll keep the box and shell casings with me.

Update: Wikipedia has the story on famous shootings in which Black Talon ammo was used.

Quote of the day—Akatsukami

If you consider all the things that lefties have at some time claimed were compensating for genital inadequacy, it becomes evident that all progress has been made by men with small penises.

Akatsukami
April 8, 2013
Comment to Compensating for Something.
[I might be persuaded there is a correlation but the lefties aren’t that obsessed with male genitalia.

I still found it funny.—Joe]

Quote of the day—Divemedic

Here in America, we have passed the tipping point: There are more people on the government dole than there are working and paying the bills. There is no longer an escape. The slide towards financial collapse has begun. Once the powers that be see this, they will try to avoid the anarchy that happens when the free money machine stops, and there will be a massive crackdown.

It is mathematically certain.

Divemedic
March 26, 2013
A virus
[There are some outs. None of them particularly pleasant.

  1. Entitlements are drastically cut. The scale required to balance the budget will result in riots, starvation, inadequate shelter, inadequate health care, and large numbers of premature deaths.
  2. The deliberate killing of “undesirables”. In some scenarios this is just a more direct version of 1. above. Another scenario is that the “undesirables” are the moderately wealthy (the extremely wealthy can almost always escape) and the looters extend their “on the dole” careers until they have consumed all that is consumable including most of each other.
  3. Massive influx of productive people and wealth from other parts of the world. This wealth and productivity would be taxed to continue supporting paying out the “entitlements”. The addition of new people to the roles of the beneficiaries would have to be essentially stopped with productive people having to work, essentially, “until their dying day” to pay off the debt without adding to it.

The third option is the least unpleasant and had some hope of occurring. This is because other countries are ahead of the U.S. on the collapse timeline. The wealthy of those other countries will, and are, fleeing. If the U.S. can attract those people then it may become a viable option. The biggest problem is that those on the dole are also fleeing areas of economic collapse. As long as the U.S. has “free” food, shelter, education, health care, ad infinitum it will be just as impossible to keep them out as has in the past.

I think the most likely scenario is that the government will not cut entitlements or stop adding people to the roles of those on the dole. The political reality will be that it is always easier to continue the looting tomorrow than it is to trigger the riots today. The end result of this is that the inevitable collapse is more complete and more people will die.—Joe]

Quote of the day–Viewer

I don’t need a firearm; I have a no-cost inital weapon. SPEECH. Humans are too sensitive to another’s words of speech. As they even admit that, in comparison to a firearm.

viewer
April 5, 2013
Comment to Gun grab–This year’s run on guns
[As the next commenter said, “That must make sense to someone.”

Gun grabbers don’t have to make sense they just have to make themselves feel good.—Joe]

Gun cartoon of the day

TriggerFingers

Via email from Carl Z.

It’s funny but it’s a poor argument. As a counter to it try this on for size:

If God would have wanted us to run around without any clothes we would have been born that way.

Huckabee’s version of common sense

He gets everything right:

Via email from Squirrel Hunter.

Quote of the day—Mark Karlin

A gun, particularly assault weapons and lethal militarized handguns, are at least two things: a prosthetic dick and a sign that even unemployed white guys still rule the Western World and sit at the head of the kitchen table.

Mark Karlin
April 1, 2013
Many American White Men Worship Guns Because of Sexual Insecurity, Entitlement, and Profit
[It’s another Markley’s Law Monday!

H/T to Sebastian and Barron who both sent me emails about this post.

One might be tempted to claim this is an April Fools Joke but if you read the whole thing I’m certain you’ll come to the conclusion this guy is serious.

Even after overlooking the grammar errors that make comprehension difficult at times I had trouble figuring out what he really meant. What does “lethal militarized handgun” mean? But I don’t think it matters. It’s readily apparent the guy has no idea what he is talking about. The entire article is filled with half-truths and absurd conclusions.

I can only conclude this guy has crap for brains.—Joe]

Boomershoot 2013 conditions

Things are looking good for Boomershoot 2013. Some years 16 inches of snow on the shooting line two weeks before the event. And we have even had snow on the hillside where the targets are for the actual event.

This year the local farmers were actually in the field for a few days last week before it started raining. Assuming it doesn’t continue like it was this weekend when Barb L. and I did some work at Boomershoot Mecca there should be good ground conditions and lots of green scenery.

Here is what it looked like today:

IMG_4224Corrected2013
The target area is still wet but it will dry out quickly with warm weather.

IMG_4218Corrected2013
The field around Boomershoot Mecca is green and in a few weeks will be very pretty.
IMG_4239Corrected2013
The fog lifting up out of Clearwater Valley looked really neat. The power lines are from Dworshak dam.

Boomershoot daffodils

Most people attend Boomershoot for the chance to shoot at explosives. Some come for the daffodils.

IMG_4226Cropped2013
IMG_4229Cropped2013
IMG_4231Cropped2013

These daffodils were planted by my grandmother and her sisters when they lived on the property where the shooting line is. The daffodils survived even though the land was farmed and they have to compete with the grass for moisture and nutrients.

Each year I think, “This year I’ll move them out of the field and onto the front edge of the shooting berm where they will be out of the field. They will do better without fireballs wilting them.” I think this year will be the year it actually happens. Barb L. saw them for the first time yesterday and she instantly agreed it was a great idea and she has experience with flower bulbs. She plans to help me with the project.

I think that within a year or two we can completely cover the front edge of the berm. I think it will be awesome.

Quote of the day–Barb L.

I think I’m getting repetitive wrist syndrome.

Barb L.
April 6, 2013
After folding hundreds of boxes for Boomershoot 2013
[I had to insist she sit down and watch me putter around arranging things and cleaning up.

We also put up another shelf and tested a new type of target.–Joe]